Unit 5 Week 5

Front

energy

Back

the ability to do work.

Front

natural

Back

found in nature.

Front

pollution

Back

harmful materials that dirty or harm the environment.

Front

produce

Back

to make something.

Front

renewable

Back

able to make new again.

Front

replace

Back

to fill the place of.

Front

sources

Back

where something comes from or begins.

Front

traditional

Back

according to customs.