5.2 Review unit 8

What does reuse mean?

• to rot away

• to make something new

• to use less of

• to use again

When waste is broken down to make something new, it is called ____________________.

• reducing

• reusing

• recycling

We must _____________________ to protect our natural resources.

• biodegrade

• Mobius

• conserve

If we .......... waste paper, we will save a lot of trees.

• A.Repeat

• B.Recycle

• C.Rewrite

• D.Remark

What does reduce mean?

• use things again and again.

• only use things you need/use less things

• make new things from old things.

What does recycle mean?

• use things again and again.

• only use things you need/use less things

• make new things from old things.

What does reuse mean?

• use things again and again.

• only use things you need/use less things

• make new things from old things.

Batteries can be _____ after they stop working.

• recycled

• saved

• glass

• rubbish

Plastic is a ____ material.

• natural

• glass

• man-made

• metal

Recycled _____ can be used to make bike parts.

• glass

• environment

• build

• metal