geography
a very large area of salt water
ocean / sea
a large area of land with very little rain and few plants
desert
to process used materials so they can be used again
recycle
to use something again instead of throwing it away
reuse
the land next to or near the sea
coast
a high area of rock with a very steep side, usually near the sea
cliff
when the ice at the Earth’s poles starts to melt
melting ice caps
dangerous waste that can harm people or the environment
toxic waste
a large mass of ice that moves slowly down a mountain
glacier
a raised area of land, smaller than a mountain
hill
a long period with little or no rain
drought
when a large amount of water covers an area that is usually dry
flood
a small, narrow river
stream
a thick forest in a hot, wet area
jungle / rainforest
gases like carbon dioxide that come from cars and factories
carbon emissions
long-term changes in the Earth’s weather patterns
climate change
a group or line of mountains
mountain range
a low area of land between hills or mountains
valley
energy that can be replaced naturally, such as wind or solar power
renewable energy
natural fuels such as coal, oil, and gas that come from ancient plants and animals
fossil fuels