Unit 5 Week 3 Vocab

Front

What is pollution?

Back

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

Front

What is carbon dioxide?

Back

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

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 non-renewable energy?

Back

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

Front

What is biodiesel?

Back

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

Front

What are natural resources?

Back

Materials or substances that occur in nature and can be used for economic gain.

Front

What is the greenhouse effect?

Back

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

Front

What is recycling?

Back

The process of converting waste materials into reusable materials.

Front

What is fossil fuel?

Back

Energy sources like coal, oil, and natural gas formed from the remains of ancient plants and animals.

Front

What is solar energy?

Back

Energy harnessed from the sun's rays.