Science 4 Second Unit Test

Based on the illustration, what do you mean by recycling?

• Recycling means is fixing or restoring broken items to be used.

• Recycling means using the same material for the same purpose.

• Recycling means converting used materials or waste materials into new and usable things.

• Recycling means lessen the use of unnecessary materials. it means avoiding disposable or single use products.

Tags

NGSS.MS-PS1-3

Which of the following materials can be recycled?

• Fruit peels

• Left-over food

• Newspaper

• Dried leaves

Which item was the most recycled based on the graph?

• Cardboard

• Steel (cars)

• Plastic bottles

• Newspapers

What will happen if we throw steel (cars) items in a field instead of recycling them?

• It will decompose.

• It will produce bad smell.

• The soil will become toxic.

• It will attract flies and other insects.

Microorganisms cannot break down plastics because plastics _____________________________.

• are made from oil

• are too abundant

• are made of unknown elements

• do not occur in nature

Tags

NGSS.MS-PS1-3

Which of the following is NOT a biodegradable waste?

• Plastic bag

• Food waste

• Old magazine

• Excretory products (ex. Animal wastes)

Tags

NGSS.MS-PS1-3

Why do we need to dispose the plastic waste materials wisely?

• to encourage people to use paper bag

• to raise awareness among the consumers

• plastic waste materials can pollute the environment

• plastic waste materials can decompose

Tags

NGSS.MS-LS2-4

All are non-biodegradable wastes except __________________.

• aluminium cans

• plastics

• glass jars

• rotten fruits

True or False: Non-biodegradable materials can be burned to lessen waste.

• True

• False

Tags

NGSS.MS-PS1-3

True or False: Segregation of waste materials is important for better disposal of waste and encourage more recycling and reusing of materials.

• True

• False