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Things that are full of air are light and can float on water.

# Forces - Inflation of Balloons

This quiz addresses the requirements of the National Curriculum KS1 Science for children aged 5 and 6 in years 1 and 2. Specifically this quiz is aimed at the section dealing with forces and inflation of, for example, balloons or bubbles.

Learning about forces in science you have found out about stretchy materials. These can be used to make balloons. Balloons work by being filled with air or inflated. Other things work by being inflated. Tyres and bouncy-castles are blown up with air. Have you ever blown bubbles? Bubbles are full of air, too. This quiz is about forces at play in balloons, bubbles and other inflated things.

1.
What will happen to the balloon when the needle touches it?
It will burst
It will change colour
It will move to the right
It will get bigger
What sound does a balloon make when it bursts?
2.
Jacob is learning to swim. He has arm bands on. The arm bands are blown up. They are full of air. The arm bands help Jacob to _____ in the water.
Run
Walk
Float
Sink
Are you a good swimmer?
3.
The bouncy castle is made of big plastic tubes. What is blown into the tubes to get the bouncy castle to be the right shape?
Air
Water
Oil
When the air is blown into the bouncy castle, the bouncy castle is inflated
4.
Annie is blowing soap bubbles. What is inside the bubbles?
Air
Plastic
Rubber
Nothing
What is the biggest bubble you have ever blown?
5.
These soap bubbles will touch the cactus. The cactus has long, sharp needles. What will happen to the bubbles?
They will get bigger
They will get smaller
They will burst
They will zoom away
Bubbles don’t last very long
6.
These children are enjoying being in a paddling pool. Before they can use the paddling pool, it has to be _____ __.
Let down
Squashed
Rolled up
Blown up
The paddling pool has to be blown up. It has to be inflated
7.
What is making the balloon get bigger?
Rubber
Water
Plastic
Air
Are you good at blowing up balloons?
8.
This is a hot-air balloon. The burner has been turned on. It is making the air inside the balloon hotter. What will the balloon do?
Go up
Go down
Get smaller
Freeze
Have you ever seen a hot-air balloon in the sky?
9.
Connor is blowing up a bicycle tyre. What is he pumping into the tyre?
Water
Oil
Rubber
Air
Have you ever used a bicycle pump?
10.
What is inside these balloons?
Hot air
Cold air
Water
Nothing
Hot air rises. It pushes the balloon up
Author:  David Bland