Air and Water Pollution Review

It is important to have clean water to ____________________.

• be discharged to the reservoir

• drink and cool our body

• wash our cars

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Which of the following is NOT a source of water pollution?

• Discharge of untreated industrial waste

• Oil spills

• Sewage

• Usage of plastic straws

Oil forms a layer on the water surface and prevents _________________ from entering the water.

• air

• straws

• fish

• litter

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Runoffs from ____________________________ from nearby farms is a source of water pollution.

• rain

• industrial wastes

• sewage

• fertilisers and pesticides

Tags

NGSS.MS-ESS3-4

The following are sources of water in Singapore EXCEPT

• Imported water from Indonesia

• NEWater

• Local catchment water

• Desalinated water

Select the ways how we can reduce the effects of water pollution.

• Clean up polluted beaches and rivers.

• Throw only metal straws along the rivers.

• Provide bins along waterways

• Clear rubbish-clogged rivers.

Tags

NGSS.MS-ESS3-3

Select the names of common air pollutants.

• Oxides of nitrogen

• Carbon monoxide

• Carbon dioxide

• Oxygen

• Sulfur dioxide

Why do we need fresh air?

• To stay healthy and carry out daily activities

• So that our cars can work

• If our air is fresh, our water is also fresh

Air pollution in Singapore can result from ____________________.

• people farting

• transport

• volcanoes

Tags

NGSS.MS-ESS3-4

True or False.

Dust particles and gaseous chemicals from industrial wastes can cause air pollution.

• True

• False

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4