What is it?
rainforest
changes in the world's weather, particularly an increase in temperature, thought to be caused by things such as carbon dioxide in the atmosphere
climate change
What is it?
stream
What is it?
ocean
What is it?
cliff
What is it?
glacier
fuels, such as gas, coal, and oil, that were formed underground from plant and animal remains millions of years ago
fossil fuels
What is it?
coast
a factory where electricity is produced
power station
What is it?
cave
What is it?
valley
solar energy
solar power
energy that is produced using the sun, wind, etc., or from crops, rather than using fuels such as oil or coal
renewable energy