This site is designed to be viewed on an
800 x 600 screen,
with level 4+ browsers.
Created by Andy Darvill,
Science teacher at
Broadoak Community School,
Weston-super-Mare, England
Web site www.darvill.clara.net
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For Double Science GCSE, you'll need to know:-
You can move
around these pages using the buttons on the left, and at the bottom
of each page, and by clicking on any
words that look like this.
Each page has a summary, and a quiz for you to try.
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that pop up when your mouse moves
over objects.
 Key Stage 3 worksheet (Word2000 format)29kb |
 GCSE Foundation worksheet (Word2000 format)32kb |
 GCSE Foundation worksheet (printable web page) |
Word version (131kb)
PDF version (162kb)
Most
of the Earth's energy comes from the Sun
Solar power, that's obvious, but the energy in coal originally came from the Sun too. Prehistoric plants stored the Sun's energy in their leaves, and when they died and eventually formed coal seams, that energy was still there. So when we burn coal (or any fossil fuel), we're releasing chemical energy that was stored in plants millions of years ago.
The same goes for Wind and Wave power. Waves occur because of winds, and winds blow because the Sun warms our atmosphere. Warm air tends to rise, and winds are due to other air moving in to replace it.
Most
power stations burn coal, oil or natural gas
to run the generators. Others use uranium,
or the flow of water. Electricity is sent around the country using high-voltage
power lines. Nearly all of the power we use comes from large power stations,
although some places such as isolated farms, or hospitals, have their
own diesel generators.
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