4th Grade Energy Review

Front

Wind Energy

Back

Can produce

renewable energy that does not run out

or produce pollution.

Front

Renewable Energy sources:

Back

Wind

Water

Sunlight

Front

Nonrenewable Energy Sources:

Back

Fossil Fuels:

Coal

Gasoline

Oil

Natural Gas

Front

Renewable Energy:

Back

Energy sources that can be used over and over without running out.

Front

Nonrenewable Energy:

Back

Energy sources that take so long to make they may run out in our lifetime.

Front

Oil

Back

is a fossil fuel

Front

Fossil Fuels

Back

are nonrenewable resources formed from decaying organisms

Front

Carbon dioxide

Back

a gas found in the environment that may contribute to global warming

Front

Humans can reduce carbon dioxide levels in the atmosphere:

Back

using less energy made from fossil fuels such as: riding bicycles

Front

Renewable resources produce energy:

Back

That is easier to replace than energy from nonrenewable resources