2019 Form 1 Science Chapter 7 : Air

The air is made up of _____% Nitrogen.

• 87

• 78

• 76

Tags

NGSS.MS-ESS2-6

How to test the presence of Oxygen?

• Use lime water

• Use glowing wooden splinter

• Use burning wooden splinter

• Use litmus paper

How to test the presence of Hydrogen?

• Use burning wooden splinter

• Use glowing wooden splinter

• Use litmus paper

• Use limewater

Oxygen helps in __________.

(more than 1 answer)

• Photosynthesis

• Combustion

• Make dry ice

• Make carbonated drinks

• Respiration

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

____________ helps in photosynthesis.

• Inert gas

• Oxygen

• Carbon dioxide

• Nitrogen

Tags

NGSS.MS-LS1-6

Plants absorb吸收 _________ and

releases释放 _________ during photosynthesis.

• Nitrogen , Carbon dioxide

• Oxygen, Carbon dioxide

• Nitrogen , Oxygen

• Carbon dioxide , Oxygen

• Carbon dioxide , Nitrogen

Tags

NGSS.MS-LS1-6

Inhaled吸入 air has _________ carbon dioxide than exhaled呼出 air.

• more

• less

Which process does not produce产生 Carbon dioxide?

• Decomposition

• Photosynthesis

• Combustion

• Respiration

Tags

NGSS.MS-LS1-6

Too much carbon dioxide in the atmosphere causes导致 __________.

(more than 1 answer)

• Global warming

• More rain

• Air pollution

• Greenhouse effect

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

Plants carry out进行 photosynthesis to produce ________ and _________.

• Carbon dioxide , food

• Oxygen , Nitrogen

• Oxygen , food

• Oxygen , carbon dioxide

Tags

NGSS.MS-LS1-6