Science y5 folder 2015 pdf

SCIENCE Y5 2015

STUDENT`S NAME:___________________ TEACHER’S NAME:

ANDREA SAIZ

DIGITAL FOLDER

WWW.SCIENCEVIRTUAL.WIKISPACES.COM

SCIENCE Y5 INTRODUCTION

STUDENT`S NAME:___________________ TEACHER’S NAME:

ANDREA SAIZ

DIGITAL FOLDER

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Why do scientists measure in the experiments?

Interview to a scientist Reporter: What is to measure?

Scientist:

To measure is to compare. For eg. If an object is bigger, smaller, more colorful, hotter, longer, faster.

Reporter: When did people start measuring?

Scientist:

It is believed that primitive men started to measure when they needed to hunt animals to eat. They used to count the animal prints on the soil. In that way, They knew if the hunting was going to be successful.

Reporter:

How did people around the world agree on measuring objects?

Scientist:

To come to an agreement was very important for trading. Nobody wanted to lose Money. Nations started to trade and the English invented a system to measure: “The Imperial System”. They used the length of the king´s foot to measure how long something was. The problem was that all the kings´ feet were different! So they started using a platinium bar equal to 33 cm. Later the French develop the meter bar and the metric system. And it became very successful because it was very easy to use.

For eg. There are 100 cm in one metre, so ½ a metre is 50 cm. You only multiply or divide by 10. Then, technology helped to improve this system.

Reporter:

How does measuring help us in everyday life?

Scientist:

It helps us with the ingredients to cook, to check if we have a temperature, to take the correct dose of medicine we should have, the weather and what we should wear…

Reporter:

How does measuring help us when we need to explain natural phenomena?

Scientist:

It helps the scientists to collect information –evidence- to prove that their Ideas about different natural phenomena are true or false.

Reporter:

Why do Scientists measure?

Scientist:

Because, in that way, the other scientists can repeat the experiments and check the evidence collected to prove a hypothesis. Then, the scientific society can accept the ideas of the different scientists. In this occasion Mathematics helps Science with easy language: numbers and units

Reporter:

Is measuring exact?

Scientist:

It is not perfect or exact but it is very precise.

Reporter:

Is only one measurement enough?

Scientist:

No, scientists always measure ten times and get an average to have the most precise and reliable measurement.

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Pipette

Why do scientists measure? ________________________________ ________________________________ ________________________________ Why is measuring so important in Science? ________________________________ ________________________________ ________________________________

LEARNING TO MEASURE

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MEASURING Scientists measure to look for information that will be used as evidence to prove their ideas. These ideas are called hypotheses. They need to analize the information they can find, compare the results and see if this information confirms their hypotheses. In that way they can give their opinions about any idea that tries to explain an event. This opinion or conclusion can be true or false.

The measurements are expressed in units: Milli means a thousandth of the unit Centi means a hundredth of the unit Deci means the tenth of the unit

Kilo means 1,000 times the unit Hecto means 100 times the unit Deca means 10 times the unit

• Sometimes they need to know the MASS of an object or substance so they use a balance or scales to obtain that information.

two- pan balance

one- pan balance

electronic balance

Mass units: kilograms (kg), grams (g) and milligrams (mg).

We use the balance when we are on a diet, to cook or go to the greengrocer´s.

Read these measurements aloud: 9.4 g

127.6 g

1kg is equal to 1,000 g

6 kg

21 mg

100 mg

65.711g

1g is equal to 1,000 mg

1kg is equivalent to a packet of sugar or flour.

1g is equivalent to a button, a grape, a plastic cap and a paper clip.

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0.5g

How many grams do these buttons equal? _________________________________

How many grams do these paper clips equal?______________________________

Do they equal 1kg or 1 g?

1L ________

_______

_______

________

________

• If they need to know how long an object is, they measure its LENGTH.

They use a meter stick or any of the instruments below.

metre stick

ruler

measuring tapes

Length units: kilometers (km), metres (m), centimeters (cm), millimeters (mm)

We use the meter sitck to know how tall we are, how far we travel or to buy laces.

When we measure the height (how high, how tall), the width (how wide) or the depth (how deep) we are measuring length , “ how long something is”.

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Read these measurements aloud.

400km

3.5km

5m

500cm

2.5cm

15cm

1km is equal to 1,000 m 1m is equal to 100 cm 1cm is equal to 10 mm 1km is the distance from Maipu Av. to Libertador Av. 1 m is the length of a leg of an adult man 1cm is the length of a nail 1mm is the width of a rice grain

Let´s measure!

How long is this pen? _____________________________

How wide is this bag? ____________________________

How long is this worm? ___________________________

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3mm

25mm

Find out this information How deep is the Mariana Trench in the Pacific Ocean? _____________________________________________ How high is the Everest Mount? _____________________________________________ How wide is the River Plate? _____________________________________________ How tall are you now? _____________________________________________ To know how hot or cold something, it is necessary to measure TEMPERATURE. Temperature unit: degrees Celsius (ºC) • We use a thermometer to measure temperature.

Lab thermometer

clinical thermometer

digital thermometer

weather thermometer

We measure the temperature of our body, the air outside and the car.

Read these measurements: 42ºC

37ºC

0ºC

3ºC

100ºC

-2ºC

-20ºC

Find out this information.

How hot is the hottest temperature ever recorded on our planet? Where? ___________________________________________________________________ How cold is the coldest temperature ever recorded on our planet? Where? ___________________________________________________________________ What is the normal human body temperature? ___________________________________________________________________ 9

What temperature does the human body have hypothermia? ___________________________________________________________________ What maximum temperature can the human body have? ___________________________________________________________________ What´s the boiling point of water? ___________________________________________________________________ What´s the freezing point of water? ___________________________________________________________________ • Measuring TIME

You can use a stopwatch or stopclock to measure time.

Time units: hours(h), minutes(min), seconds(s)

We measure time to start or end a match or classes, to cook, to see a show or a TV programme.

It is good to develop a sense of time. Let´s see if you can estimate how many seconds or minutes it will take you to...

Estimation 1-write all the letters of the alphabet ___________ 2-fold a sheet of paper into eighths ___________ 3-spell the word MISSISSIPPI aloud ___________

Were you near? _____________________________________ 10

then measure and compare ......................... ........................ ........................

• If scientists need to know how much space an object takes, they measure its VOLUME. They measure the volume of a substance to know how much of it they will need to use. If they want to know how much space there is in a container they will measure its capacity. • Volume units: liter(L), milliliter(ml)

Answer: Is 1L enough to brush your teeth? __________________________ Is 10L enough to go swimming? __________________________ Is 250ml enough to give your little pet a drink? ____________________________________ Is 1L enough to wash your hands? ____________________________________ Is 10 ml of oil enough to make bread? _____________________________________ Write the capacity of different Coca Cola bottles ____________________________________ What is the capacity of a cup of tea? ____________________________________

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Material: 30 ml of vinegar

.......g of sodium bicarbonate red food colouring

Method: Follow the steps and record the results.       

Measure .......g of sodium bicarbonate.

Put it on a tray.

Make a hole on top of the mount.

Measure 30 ml of vinegar.

Add 2 drops of red food colouring to the vinegar. 1drop=1ml Pour the vinegar with the drops of food colouring into the hole of the mount.

Measure the temperature and the time of the reaction.

Results:

Volume of 2 drops of food colouring:________________ Temperature of the reaction:____________________ Time of the reaction:__________________________

Conclusion: There was a (reversible/irreversible) ___________ change.

There was a (physical/chemical)____________change.

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SCIENCE Y5 ECOSYSTEMS PART I Matter in the ecosystem

STUDENT`S NAME:___________________ TEACHER’S NAME:

ANDREA SAIZ

DIGITAL FOLDER

WWW.SCIENCEVIRTUAL.WIKISPACES.COM

201__

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Look around you. What do you see? Perhaps you see desks and other people. Is there anything that you can feel but not see?

These are examples of matter. Even the things that you cannot see are matter. Matter has mass and takes up space.

Matter Everywhere Matter is in the air, in the water, and on land. Matter makes up everything in the universe. Matter can be in three states: solid, liquid or gas.

We can learn more about matter by taking measurements.

•

Volume is the amount of space matter takes up.

•

Mass is the amount of matter of an object.

Matter is anything that has mass and volume. It may be solid, liquid or gas.

What is matter made of?

Crush a lump of sugar on black construction paper until you obtain powder. Observe it with a magnifying glass. A substance like sugar can be divided into smaller pieces. Each one of these receives the name of particles.

Draw what you see.

Substances are formed by _________________________.

Each one of these sugar particles is formed by much smaller pieces called molecules.

Particles are formed by ________________________.

Molecules are the smallest portions in which you can divide a substance and keep its properties.

Molecules are so small that you cannot see them. Molecules are formed by smaller portions called atoms.  Use an arrow to show the relationship “is formed by”.

MATTER

SUBSTANCE

PARTICLE

MOLECULE

ATOM

WATER DROPS

WATER MOLECULE

OXYGEN ATOM

WATER

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HYDROGEN ATOMS

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Material properties Materials have different properties that make them useful for different jobs.

Material properties Materials have different properties that make them useful for different jobs. Here are some properties that materials have.

Transparent or opaque Transparent materials do let light through (you can see through them). Opaque materials do not let any light through (you cannot see through them).

Waterproof Waterproof materials do not let water through and do not soak up water.

Absorbant Absorbent materials soak up water and let water pass through them.

Strong or weak Strong materials are very difficult to break. Weak materials break easily.

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Flexible Flexible materials are easy to bend.

Rigid Rigid materials are difficult to bend.

Hard Hard materials are difficult to scratch.

Magnetic Magnetic materials are attracted to magnets.

Conductors Some materials are good conductors of heat. This means heat can travel through them easily.

Some materials are good conductors of electricity. This means electricity can travel through them easily.

Insulators

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Some materials are insulators of heat. This means they do not allow heat to travel through them very easily. Some materials are insulators of electricity. This means that electricity cannot travel through them.

Metals

Metals come from rocks called ores.

They are strong, hard and shiny materials that can be hammered into different shapes without breaking.

Many metals are good conductors of heat and electricity.

Some metals are magnetic. Iron is the most magnetic metal. Steel is also magnetic because it is made of mostly iron.

Their properties make them useful for objects such as cutlery, saucepans, cars and coins.

Plastics

Plastics are materials made from chemicals and are not found in nature. They are strong and waterproof, and can be made into any shape by applying heat. Plastics can also be dyed different colours or made to be transparent.

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Plastic is not magnetic. It is a good electrical insulator as it does not conduct heat or electricity.

Plastics are used to make all sorts of things, such as bags, bottles and toys.

Glass

Glass is made by melting sand and other minerals together at very high temperatures.

Glass is normally transparent and can be made into many different shapes. Thick glass can be strong, but thin glass will break very easily.

Glass is used for objects that need to be transparent such as windows and spectacles.

Wood

Wood comes from trees.

It is strong, flexible and long lasting.

Wood is used to make things such as furniture that need to be strong and last a long time.

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Wood is an insulator of heat and electricity.

Fabrics

Fabrics are made from thin fibres woven together. •

Some fabrics, such as wool, cotton and silk, are natural (the fibres come from living things).

•

Some fabrics, such as polyester and nylons are made from synthetic fibres, which are made in factories, from chemicals.

Different fabrics have different properties. Fabrics can be stretchy (a pair of tights), insulating(keep you warm, like a woollen coat) or absorbent (a towel).

Fabrics are used to make clothes as they are flexible and comfortable, can be warm and do not wear out easily.

Material properties - Quiz 1.

Why couldn't you use a plastic towel?

It would be too bendy It wouldn't be absorbent It wouldn't conduct heat 2.

Why wouldn't you sit on a glass chair?

It might shatter It wouldn't be absorbent It would be transparent 3.

Where do metals come from?

From rocks called ores From fibers woven together From trees

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4.

How is glass made?

By heating sand By mashing up wood from trees By weaving fibers together 5.

How is paper made?

By heating sand By mashing up wood from trees By weaving fibers together 6.

Metal is used for nails because it ... rusts is shiny does not bend easily 7.

Wood is used for matches because it ... floats rots burns 8.

Rubber is used for wellington boots because it ... floats is opaque is waterproof 9.

Which spoon is it safer to stir very hot soup with?

A metal spoon A wooden spoon A paper spoon 10.

Material A is stretchy but not absorbent. Material B is very absorbent but does not stretch. Which makes the best swimwear?

Material A Material B Both Material A and Material B make good swimwear

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Solids, liquids and gases Solids, liquids and gases have different properties.

Liquids and gases can flow. Solids keep their shape. Gases can be squashed.

Solids •

Solids stay in one place and can be held.

•

Solids keep their shape. They do not flow like liquids.

•

Solids always take up the same amount of space. They do not spread out like gases.

•

Solids can be cut or shaped.

•

Even though they can be poured, sugar, salt and flour are all solids. Each particle of salt, for example, keeps the same shape and volume.

•

Heating some solids can turn them into liquids.

•

Cooling a liquid can turn it into a solid.

Examples of solids

Liquids •

Liquids can flow or be poured easily. They are not easy to hold.

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•

Liquids change their shape depending on the container they are in.

•

Even when liquids change their shape, they always take up the same amount of space. Their volume stays the same.

•

Heating a liquid can turn it into a gas.

•

Cooling a liquid can turn it into a solid.

•

Heating a solid can turn it into a liquid.

•

Cooling a gas can turn it into a liquid.

Gases •

Gases are often invisible.

•

Gases do not keep their shape or always take up the same amount of space. They spread out and change their shape and volume to fill up whatever container they are in.

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•

Gases can be squashed.

•

Heating a liquid can turn it into a gas.

•

Cooling a gas can turn it into a liquid.

Examples of gases

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Changing states Solids, liquids and gases are called the three states of matter. Materials can be changed from one state to another by heating or cooling.

Water can be observed as a liquid, a solid (ice), or a gas (water vapour) and moves around the environment in a process known as the water cycle.

States of matter Solids, liquids and gases are called the three states of matter.

Materials can be changed from one state to another by heating or cooling.

Heating •

If ice (solid) is heated, it changes to water (liquid). This change is called melting.

•

Water (liquid) can change to water vapour (gas). This is called evaporation.

•

If water (liquid) is heated until it boils, it changes to water vapour (gas) very quickly. Water boils at 100°C

Cooling •

If water vapour (gas) is cooled, it changes to water (liquid). This change is called condensing.

•

If water (liquid) is cooled, it changes to ice (solid). This change is called freezing. Water freezes at 0°C

Solids and liquids Heat melts a solid and turns it into a liquid. Cooling freezes a liquid into a solid.

Different solids melt at different temperatures, some high, some low. These are called their melting points.

Heating Heat can change solids into liquids or gases.

•

Most solids melt into liquid when they are heated.

•

A liquid evaporates into a gas when it is heated.

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Cooling When we cool something we take heat away from it. Cooling changes a gas into a liquid, and a liquid into a solid.

•

A gas condenses into a liquid when it is cooled.

•

A liquid freezes into a solid when it is cooled.

Melting points Different solids melt at different temperatures. Ice melts at 0 degrees Celcius (0°C).

Chocolate melts at about 35°C. We say that chocolate has a higher melting point than ice.

Metals, like aluminium and iron, also melt when we heat them. They have very high melting points. They have to be very hot to melt.

Temperature

Temperature is a measure of how hot or cold things are. You need a thermometer to measure temperature.

Temperature is measured in degrees Celsius(°C).

•

Ice melts at exactly 0°C.

•

A hot bath is about 40°C

•

Water boils at exactly 100°C

The water cycle

Water on the earth is constantly moving. It is recycled over and over again. This recycling process is called the water cycle.

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a. Water evaporates into the air The sun heats up water on land, and in rivers, lakes and seas and turns it into water vapour. The water vapour rises into the air. b. Water vapour condenses into clouds Water vapour in the air cools down and changes back into tiny drops of liquid water, forming clouds. c. Water falls as rain The clouds get heavy and water falls back to the earth in the form of rain or snow. d. Water returns to the sea Rain water runs over the land and collects in lakes or rivers, which take it back to the sea. The cycle starts all over again.

Changing states - Quiz 1.

Which of the following are examples of liquids?

Wood and paper Shampoo and oil Shoes and socks 2.

Butter going soft and runny on a hot day is an example of ... freezing melting condensing 32

3.

What is the missing word? When water is...., it starts to change from a liquid to a solid. cooled heated boiled 4.

Once a solid has turned to a liquid, can it be changed back to a solid again?

No, it can never be turned back into a solid Yes, by heating it Yes, by cooling it 5.

Clouds are formed by ... rain falling hot air rising water vapour condensing 6.

A gas condenses into a liquid when it is... cooled warmed boiled 7.

Which process is the opposite of condensation?

Melting Freezing Evaporation 8.

What happens during evaporation?

A gas changes to a liquid A solid changes to a liquid A liquid changes to a gas 9.

The movement of water around and around our world is called... condensation the water cycle evaporation

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10.

Which of these is NOT a part of the water cycle?

The Sun evaporates water on the Earth's surface into water vapour The water vapour rises, and cools and condenses into clouds When it rains, the clouds melt

The temperature at which water freezes or melts is always the same, 0ºC (zero degrees Celsius) and it is called freezing or melting point of water.

The temperature at which water evaporates or condenses is always the same, 100ºC (one hundred degrees Celsius) and it is called boiling or condensation point.

Try this crossword puzzle!!!

1 2

3

4 5 7 6 8

9

Horizontal

2. When water vapour cools down and becomes water the process is called…………..

4. The process by which water turns into ice or a liquid turns into a solid is called …………………………..

5. A………………….maintains its shape and volume 8. A …………………………….maintains its volume but not its shape.

9.A ………………………………doesn’t maintain its shape or its volume.

10. When a substance changes from one form to another but no new substance is formed it is called a ………………………… .

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Down

1. When a new substance is formed during a change it is called a ……………………………..

3. O……………… is a gas found in the air.

6. If we want a solid to become a liquid we must…………………..it.

7. The process by which a solid becomes a liquid is called……………….

1. Try this crossword puzzle

1H 2

Y

3S

P 4

W

5C 6I

P

8A

H

7T

9

S

10 S 11 12

CLUES 1. What takes the gas from the gas tap to the Bunsen burner?

2. What is the grey material inside the thermometer called?

3. When water is at 100 C it is at the….point 4. What colour is the flame when the air hole is closed?

5. When we make a Science report, the…..is what we have discovered 6. When water is at 0 C it is at the….point 7. We use a …….. to measure temperature 8. The air hole can also be called the ……..

9. What source of fuel does the Bunsen burner use?

10. The yellow flame is also called the ………..

11. What colour is the flame when the air hole is open?

12. What do scientists use to heat liquids?

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SCIENCE Y5 ECOSYSTEMS PART II Energy in the ecosystem

STUDENT`S NAME:___________________ TEACHER’S NAME:

ANDREA SAIZ

DIGITAL FOLDER

WWW.SCIENCEVIRTUAL.WIKISPACES.COM

201__

HEAT - TEMPERATURE 36

HEAT and TEMPERATURE Watch the video and answer these questions.

1. How do you feel hot and cold?_____________________________________________ 2. What is temperature? __________________________________________________ 3. Can you measure temperature? How?________________________________________ 4. Are temperature and heat the same?________________________________________ 5. What do we use heat for at home?_______________________________________ Lab experiment Put some ice cubes in a bowl with hot water. Measure the temperature of the ice and the water at the given times.

0

1

2

3...

ice cube hot water 6. Look at the results. What happens when two objects with different temperatures are in contact? _____________________________________________________________________ 7. What changes can you observe when you apply heat to water? _____________________________________________________________________ 8. Can you reverse these changes?___________________________________________ 9. What are these changes called?___________________________________________ 10. What changes can you observe when you apply heat to an egg? _____________________________________________________________________ 11. Can you reverse them?__________________________________________________ 12. What are these changes called?___________________________________________ How does heat affect the volume of materials?

Let´s do some experiments in the lab!

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https://www.youtube.com/watch?v=HhTm4k_TLFI Heat, temperature and energy. YOUTUBE

Investigate: Do liquids expand when exposed to heat?

Object: To test if heat expands liquids.

Materials:

Method: Take a test tube and fill it up right to the top with the liquid you have chosen to investigate. Cover the test tube with a cork, which is perforated with a long thin tube. Mark the zero point and every centimetre up to the top of the thin tube on paper. Heat the liquid inside the test tube and count the line it reaches.

Diagram:

Results: Share your results with the rest of your classmates and complete the following table Liquid

Nยบ of lines

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Conclusion: Liquids such as ……………………………………………………………………………………..expand by the action of …………………….. The expansion varies according to the liquid.

Do liquids expand when exposed to heat?__________________________________

13. Apply the concept of expansion to your clinical thermometer. How does it work? _____________________________________________________________________ _____________________________________________________________________ 14. Why are there expansion joints in train railways and bridges? _____________________________________________________________________ _____________________________________________________________________ 15. What happens to the concrete, steel and other building materials when they are exposed to heat? _____________________________________________________________________ _____________________________________________________________________ 16. Do solids expand?___________________________________________________________

17.

Lab experiment:

Inflate a balloon with air. Measure its diameter.

Diameter of the balloon:__________________________________________________ Now put it in a bowl with hot water and measure its diameter.

Diameter of the balloon __________________________________________________ What happened to the air in the balloon?______________________________________ Now put it in a bowl with cold water and measure its diameter.

Diameter of the balloon __________________________________________________ What happened to the air in the balloon?______________________________________ 18. Do gases expand? ___________________________________________________ 39

19.Complete

the conclusion

When liquids, solids and gases are exposed to heat, their volume ___________________

Does Heat move?

Your hypotheses: Write YES or NO Does heat travel in space?_________________________________________________ Does heat move in gases?__________________________________________________ Does heat move in the solids?_______________________________________________ Does heat move in the liquids?______________________________________________ https://www.youtube.com/watch?v=G9QJ1vv2WyM

Let´s do some experiments in the lab!

Investigate: How does heat conduct through different materials?

Object: To find out how heat travels through different materials.

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Materials: rods of_________ Method: Place one of the ends of each rod in a bowl with very hot water.

Diagram:

Results: Material

Did it conduct heat?

Conclusion: Through what material did the heat propagate? Why does this occur? ____________________________________________________________________ ____________________________________________________________________ Through what material couldn´t the heat propagate? Why does this occur? ____________________________________________________________________ ____________________________________________________________________

Read.

Heating and cooling matter Heating and cooling matter changes the motion of its particles and the spaces between them.

Imagine you have a small box with little balls. These balls will represent the particles of in a solid.

If you shake the box gently, the particles will not move as they are tightly packed in the box. When the particles move, they have energy of motion - even if it is just a small amount. You could say that they have very little thermal energy. THERMAL energy is the total energy of the particles of 41

matter. It is related to the energy of the moving particles. The particles of a solid have very little energy of motion.

If you shake the box harder, you add more energy to the particles. The balls will break out their arrangement in the box and move farther and faster. The same happens to matter. Thermal energy can be added to matter (and particles move faster and farther apart) or thermal energy can be taken away from matter (and particles slow down and move closer). You cannot see thermal energy but you can feel it as heat.

HEAT is the flow of thermal energy from a warmer area to a cooler area.

What is HEAT?______________________________________

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What have you learnt about heat?

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CONDUCTORS AND INSULATORS

ENERGY TRAVELS in LIQUIDS, GASES AND SOLIDS

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IN SOLIDS

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WHAT IS THE SOURCE OF HEAT IN THE LABORATORY? ____________________________________ 47

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LIGHT What is light?

Where does light come from?

How does light travel?

Can light pass through objects?

What is a shadow?

Can light bounce?

Can light bend?

How can a rainbow form?

Can matter absorb light How do you see light?

What would happen if light did not exist?

What is a laser?

What is a led?

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SCIENCE Y5 ECOSYSTEM PART III Biotic factors

STUDENT`S NAME:___________________ TEACHER’S NAME:

ANDREA SAIZ

DIGITAL FOLDER

WWW.SCIENCEVIRTUAL.WIKISPACES.COM

201__ 54

Resource book: WHAT´S BIOLOGY ALL ABOUT?

INTRODUCTION

-Read pages from 4 to 7 silently.

-Then look for the information to answer each of the questions on these pages and underline it using pencil and ruler.

-Only after that, start writing the answers.

1. What is Biology? Page 4 __________________________________________________________________ 2. What is life for science? Pages 4, 10 and 11 _____________________________________________________________________ _____________________________________________________________________ 3. What is a biologist? Page 6 _____________________________________________________________________

4. Name kinds of biologists and what they study. Page 6 ____________________ ____________________ ____________________ ____________________ ____________________ ____________________ ____________________

STUDY

microbes animals plants genes fossils ecosystems organisms in seas and oceans

5. Name 3 important discoveries that have made our lives safer. Page 7 _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 6. Name 3 important biologists from Argentina and mention their discoveries.

Name

Discovery

_______________________________

____________________________________

_______________________________

____________________________________

_______________________________

____________________________________ 55

Can you find more important biologists in Argentina? afsaiz@gmail.com

Eduardo Holmberg

Bernardo Houssay Luis Agote

Francisco Moreno

Florentino Ameghino Rene Favaloro

Luis Leloir

Kornblit

Page 7

Name 3 important biologists from other countries and mention their discoveries.

Name

Discovery

_______________________________

___________________________________

_______________________________

___________________________________

_______________________________

___________________________________

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Resource book: WHAT´S BIOLOGY ALL ABOUT?

MORE ABOUT BIOLOGY

(Pages 87 to 91)

Read Biology “Through the Ages” on pages 87- 88 and complete the paragraph.

1. This timeline represents the history of Biology discoveries from ………………..to …………………….. .

At the beginning the man learnt how to…………………………………………………………………………………………………

Later some Greek thinkers started to …………………………………………………………………………………………………… …………………………………………………………………………………………………………………………………………………………………………

The first encyclopedia on medicine was written by a Persian scholar to ……………………………………… …………………………………………………………………………………………………………………………………………………………………………

Leonardo Da Vinci from …………………. made ……………………………………………………………………………………………..

And with the invention of the microscope, it was possible to observe………………………………………….. and develop antiseptics to prevent ………………………………………and vaccines for………………………....like ………………………………………………………………….. .

To study animals in a better way, Carl Linnaeus developed a …………………………………………………………… and Jean Lamarck and Darwin studied the ……………………………………… of species. Louis Pasteur developed the “………………………………………………………………..” to stop microbes spoiling food and drink while Alexander Fleming discovered the penicillin, an antibiotic to kill bacteria that caused diseases. During the last decades, many biologists made essential discoveries to understand the DNA in the cells and find the cure to different illnesses.

2. How do biologists start an investigation? (pages 90-91) _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 3. Are scientists ever wrong? Do they make mistakes? (page 91) _____________________________________________________________________ _____________________________________________________________________ 4. What do scientists need to do so that their ideas are considered TRUE by other scientists? (page 90) _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 5. Find some famous anecdotes about scientists who had a very hard time when trying to prove their ideas. _____________________________________________________________________ _____________________________________________________________________ 57

Resource book: WHAT´S BIOLOGY ALL ABOUT?

WHERE DID LIFE COME FROM?

(65 TO 75)

-Read from page 65 to 67 silently.

-Then look for the information to answer each of the questions on these pages and underline it using pencil and ruler.

-Only after that, start writing the answers.

1. What do biologists use to learn about the beginning of life? (page 67) _____________________________________________________________________ _____________________________________________________________________ 2. What are fossils? (page 67) _____________________________________________________________________ _____________________________________________________________________ 3. How do they form? (page 67) _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 4. What kind of fossils are there? (page 67) _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 5. What have biologists discovered about the beginning of life by studying fossils? (page 66) _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 6. Look at the timeline on Life´s History and try to understand how our planet Earth was formed and how life developed on it. See how from early bacteria other species developed in the oceans and on the land. Pay attention to the species that appeared after each mass extinction. (pages 68 to 71)

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-Read from page 72 to 74 silently.

-Then look for the information to answer each of the questions on these pages and underline it using pencil and ruler.

-Only after that, start writing the answers.

7. Show some evidence that species evolve. (page 72) _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 8. Who tried to explain the evolution of the species? (page 73) _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 9. Explain the Theory of Natural Selection. (page 73) _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 10. Are there other explanations about the evolution of the species? Name the most important theories. (page 73) _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 11. How fast does evolution happen? (page 74) _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 12. How does extinction help evolution? (page 74) _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 13. How did the humans evolve according to scientists? (page 75) _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 59

Y5 SCIENCE TESTS