Unit 5 Week 3 Vocab

Front

What is pollution?

Back

When the environment is contaminated by trash, gases, or chemicals.

Front

What is non-renewable energy?

Back

Energy resource that cannot be replaced quickly once it’s used.

Front

What is carbon dioxide?

Back

A gas made by burning carbon and organic compounds, and by breathing.

Front

What is biodiesel?

Back

Fuel made from vegetable oils, animal fats, and recycled grease.

Front

What is renewable energy?

Back

Energy that comes from natural sources, like the sun, wind, and water, and never runs out.

Front

What is a renewable resource?

Back

A resource that can be replenished naturally over time.

Front

What is fossil fuel?

Back

Energy resources formed from the remains of ancient plants and animals, such as coal, oil, and natural gas.

Front

What is the greenhouse effect?

Back

The warming of the Earth caused by gases in the atmosphere trapping heat.

Front

What is recycling?

Back

The process of converting waste materials into reusable materials.

Front

What is conservation?

Back

The careful use of resources to prevent waste and protect the environment.