Experiment correction - air

Multiple Choice

Why did the paper in glass A remain dry?

• There is air inside the glass

• There is air in the water

• There is water inside the glass

Multiple Choice

Why did the paper in glass B become wet?

• The air inside the glass escaped, allowing water to enter the glass

• Water went out from the glass, making the paper wet

• The air inside the glass made the paper become wet

Dropdown

The small pockets filled with ​

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act like cushions, which protect ​

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objects from ​

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.​

Multiple Choice

Which property of air do bubble wraps make use of?

• Air exerts pressure.

• Air has no colour.

• Air takes up space.

Dropdown

The balloon is filled with ​​

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. This shows that ​

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.

Multiple Choice

You can squeeze it and turn it into other animals. This shows that _____ .

• air does not have a fixed shape

• air does not have smell

• air does not have taste

• air exerts pressure

Drag and Drop

Removing air from a vacuum bag ​

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the air pressure inside the bag. The air pressure outside the bag becomes ​

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than that inside, thus, the bag is ​

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. This helps ​

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.

Drag these tiles and drop them in the correct blank above

higher

flattened

save storage place

reduces

increases

lower

inflated

hold the bag in place

Drag and Drop

When a suction cup is pressed, the ​

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underneath is squeezed out and the air pressure inside the cup is ​

Placeholder

. The ​

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air pressure outside the cup pushes the cup against the surface, ​

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.

Drag these tiles and drop them in the correct blank above

air

reduced

higher

holding the cup in place

water

increased

lower

saving storage space

Multiple Choice

Which candle in the picture went out quicker?

• Candle A

• Candle B

• Candle C

Dropdown

There is ​​

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air inside the ​

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glass. Covering the candle with the glass stops it from getting more ​

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from the air outside, so it went out quicker.

Multiple Choice

Candle A keeps burning because there is enough ___.

• oxygen

• nitrogen

• carbon dioxide

Multiple Choice

We use lime water to test for the presence of ___ .

• oxygen

• carbon dioxide

• nitrogen