Unit 7A Vocabulary Homework

A synthetic or human-made material, which is light weight.

• metal

• plastic

• materials

• renewable resources

Harmful substances that hurt the air, water, and soil.

• renewable energy

• limited resources

• pollution

• airplanes

A process that breaks something down in parts so it can be used again.

• water cycle

• reduce

• reuse

• recycle

To make something smaller or use less of something.

• limit

• decrease

• reduce

• reuse

When you can’t use up all of something. 

• limited

• renewable

• non-renewable

• solution

To use something again instead of throwing it in the trash.

• reuse

• reduce

• recycle

• renewable

To talk about an idea with someone who has a different opinion

• argument

• debate

• problem

• solution

A reason for a viewpoint

• argument

• debate

• problem

• solution

Giving the right amount of importance to different things.

• argument

• balance

• debate

• plastic

Something that solves a problem

• candy

• solution

• Ms. Amanda

• evidence