UNIT 6: FORCES AND ENERGY
NATURAL SCIENCE SECOND LEVEL PRIMARY
Mª Isabel López
CEIP SANTA ANA MADRIDEJOS (TOLEDO)
WHAT DIFFERENT ACTIVITIES CAN YOU NAME? HOW DO THESE PEOPLE AND OBJECTS MOVE?
FORCES
PULL
ENERGY (Types of energy)
WIND
RENEWABLE SOURCES
NONRENEWABLE SOURCES
THE SUN
PETROLEUM
LOUD AND SOFT SOUNDS
WIND
COAL
HIGH AND LOW SOUNDS
SOLAR PUSH
ELECTRICITY AND HUMAN ENERGY
SOUND AND LIGHT
HEAT WATER
GRAVITY HUMAN
HYDEL
ELECTRICAL
PLEASANT AND UNPLEASANT SOUNDS
NATURAL AND ARTIFICIAL LIGHT
FORCES Force is the push or pull aplied on an object. A force can make an object move, stop, break, change shape or change the direction. Gravity is a force that pulls objects down to the ground.
We move a tennis ball when we hit it with a racket.
We can break an object.
We can also stop the ball.
A magnet can move metal objects without touching them.
We can change the shape of plasticine.
Gravity is a force. When you throw an object up, falls back to the ground.
ENERGY • All tools and machines need energy to move. Energy is the ability to do some work.
• Energy can be stored. • There are different types of energy. • Energy comes from different sources.
TYPES OF ENERGY
WIND ENERGY
SOLAR ENERGY
HEAT ENERGY
HUMAN ENERGY
HYDEL ENERGY
ELECTRICAL ENERGY
RENEWABLE SOURCES There are renewable sources.They will never run out. Some renewable sources are the Sun, water or wind.
THE SUN
WIND
WATER
NON-RENEWABLE SOURCES There are non-renewable sources.They will run out one day. Some non-renewable petroleum or coal.
PETROLEUM
sources
COAL
are
ELECTRICITY
AND
HUMAN ENERGY
Many of the machines that we use every day work with electricity COMPUTER
FAN
REFRIGERATOR
DRILL WASHING MACHINE
TV
Some machines, for example bicycles, work with human energy
PENCIL SHARPENER TINOPENER
RAZOR
BICYCLE
SQUEEZER
SCISSORS
SOUND Sound is a type of energy.
There are loud and soft sounds; high and low sounds; and pleasant and unpleasant sounds. Objects make different sounds.
Loud sounds, such as an explosion.
Soft sounds, such as water in a fountain.
High sounds, such as a whistle.
Pleasant sounds, such as music.
Low sounds, such as a big drum.
Unpleasant sounds, such as a drill.
LIGHT NATURAL LIGHT
ARTIFICIAL LIGHT
THE SUN A CANDLE
A TORCH
A FIRE
THE MOON A LAMP
FORCES AND ENERGY