Waste in Our World

Waste is unwanted materials and objects that people have thrown away. Which of the following is toxic?

• batteries

• cans of paint

• car exhaust

• all of the above

Tags

NGSS.MS-ESS3-4

Animal waste is leftover materials from animals. Examples are

• a bird's nest

• bird excrement

• feathers

• all of the above

When a plant dies, its remains are decomposed because they are...

• biodegradable

• gradable

• ungradable

• biotic

Tags

NGSS.MS-LS2-3

Which of the following would help get rid of waste?

• recycling

• reusing

• regifting

• all of the above

Which of the following words means "waste that can be broken down by decomposers so it can become nutrients for soil and useful for our environment?

• germs

• biodegradable waste

• vermicompost

• leachate

Toxic waste is waste that can

• harm when it is inhaled or eaten.

• help gardens grow.

• be easily broken down into reusable materials.

• only be found on Mars.

Tags

NGSS.MS-LS2-4

NGSS.MS-PS1-3

Little creatures that break down organic waste are

• microorganisms

• fungi

• mold and worms

• all of the above

Which of the following is an example of organic waste?

• metal

• plastic

• food scraps

• glass

Which type of waste is the most biodegradable?

• Liquid waste

• organic waste

• recyclable waste

• hazardous waste

Which of the following living things are decomposers?

• worms

• mice

• trees

• birds