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7We need air to breathe.
Air is made of only oxygen gas.
Air has no color, smell, or taste.
Air has weight.
Air does not occupy space.
Air has a definite shape.
Air occupies space.
The weight of air can be observed by inflating a balloon and balancing it.
Cardboard falls when a glass full of water is inverted because air has no pressure.
Percentage: 0%
Which gas do we take in while breathing?
Which gas do we throw out while breathing?
Air is a mixture of:
What happened when the balloon was burst in Activity 6.14?
Why does the postcard not fall when the glass is turned upside down?
Air has:
When a glass is pushed vertically into water, why does water not enter?
Air takes the shape of:
Inflating a balloon with an air pump shows that air:
Air is a mixture of different ______.
We breathe in ______ gas.
Air has no color, ______, or taste.
Air occupies ______.
Air gives ______.
Air has ______ which can be observed using balloons.
Air takes the ______ of the object it is kept in.