Electronics & Energy Sources 1. Decide which energy source is being described below. 1. This energy source uses a metal called uranium for fuel. ______________ 2. This energy source is used as a fuel for cooking and heating. ______________ 3. This energy source does not need to burn fuel to create electricity. ________ 4. This energy source is a heavy, solid fuel. ____________ 5. This energy source is often found underground with oil._____________ 6. This energy source produces radioactive waste.______________ 7. This energy source is often transported by train.______________ 8. This energy source is used to make petrol and diesel._____________ 9. This energy source is a liquid._____________
2. Express each of these ideas as a compound noun: 1. A board consisting of a number of panels _____________________ 2. Material that doesn´t allow rain to get into it _____________________ 3. A board consisting of a number of electrical switches _____________________ 4. Conductors that are perfect, conducting a current without a battery _____________________ 5. Current that is greater than the load intended ____________________
3. Complete the paragraph with the words to fill in the blanks. oxygen coal non-renewable
plants fossil
carbon wood
wind
renewable dioxide
Fuels like coal, oil and gas are called ____________ fuels because they
are
made
from
the
preserved
remains
of
dead
_____________ or animals. The trees of the ancient forests took in _______________ from the air and used it to grow and produce ____________.
Wood
is
made
from
a
substance
called
_____________. When the trees became fossilised into _____________, this carbon was stored inside the Earth for millions of years. When coal is burned, carbon mixes with _____________ from the air and releases Carbon Dioxide back into the atmosphere.
Energy produced from fossil fuels is called _____________ energy because these fuels take millions of years to form. When they are used up, they cannot be replaced. _____________ energy can be produced from water, sun or _____________ which will not be used up. Wood can be burned to produce renewable energy. When wood is burned, it releases carbon dioxide, but if a new tree is planted each time one is cut down, this carbon dioxide is taken up by the new tree.
4. Use the following words in a sentence: - renewable _________________________________________________________ - non-renewable _____________________________________________________ - pollutant __________________________________________________________ - fossil fuels _________________________________________________________
5. Say what these words mean: turbine dam sediment carbon global warming
solar panel windmill power plant radiation biomass
6. Write the following TOOLS in your language: screwdriver wheelbarrow axe hammer Sandpaper Saw Drill Measure tape
wrench pliers toolbox nails Spade Stepladder Screw pliers
READING: Environmental Pollution There are three types of environmental pollution: air, ground, and water pollution. Acid rain Historically, air pollution comes from industries and transport. Factories, power stations and cars burn oil and coal. This rises into the air as different forms of sulphur and nitrogen. The sulphur and nitrogen combine with water in the air to make sulphuric or nitric acid. This falls to the ground as acid rain. We burn large quantities of coal and oil, and this creates millions of tonnes of acid rain. The wind carries the rain long distances, and this creates problems. One country makes acid rain, and it falls to the ground in another country, for example, Canada gets a lot of acid rain from the USA, and Norway gets a lot of acid rain from Britain. The greenhouse effect Industrial countries also cause the greenhouse effect (also called “global warming” or “climate change”). Burning coal and oil produces carbon dioxide (CO2). The (CO2) increases in the Earth’s atmosphere, and retains heat from the sun (it works like the glass in a greenhouse- it lets heat in, but doesn’t let the heat out). The Earth is getting hotter. Weather patterns are changing: some places have no water for years, and some places have floods. When a country has no water, the effects are very hard- in Chile in 1999, the result was electricity cuts around the country. There was no water for the hydro-electric power stations. Ozone layer damage The ozone layer is a band of gas around the Earth. It protects us from dangerous ultraviolet (UV) radiation from the sun. It is vital to human and animal survival. Unfortunately, we are producing chemicals which destroy the ozone layer. The damage starts in the Antarctic and spreads. Animals are becoming blind because the ozone layer is thinner. In Australia, a lot of people are getting skin cancer from the sun.
1. Read the texts quickly. Which problems are described here? _________________, _________________ and _________________ 2. Find these words in the text. Match them with their meanings. a) pollution b) climate c) power station d) acid rain e) greenhouse effect f) radiation
…. …. …. …. ….
a factory which produces electricity world’s weather energy from the sun rising temperatures around the world rain containing chemicals which pollute the environment. …. something that makes the earth, air or water dirty and dangerous.
3. Are the statements True or False?
….. The page is from a magazine ….. The text describes different types of air pollution ….. Canada sends acid rain to the USA ….. Global warming is also called climate change ….. Industrial countries cause the “greenhouse effect” ….. You can see the effects of ozone layer damage in the five continents. ….. Humans are damaging the ozone layer.
Good luck everybody!!!