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| The
magnetic field suspends the paperclip in midair. |
How
strong is the magnetic field? |
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| Magnet
experiments are fun. |
How
far can we pull the paperclip without it falling? |
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| Opposite
poles attract. |
But
the same poles repel. |
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| It's
easy to observe wind direction with bubbles. |
This
looks like half a bubble. |
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| We
are compressing air in the syringe. |
This
proves air takes up space. |
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| The
plunger pops out when there is too much pressure. |
It's
hard to get any more air in this small space. |
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| |
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| How
can we get the green water back in the tube? |
It's
going in slowly. |
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| We
made parachutes to prove that air resistance keeps the parachute
from descending fast. |
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| Pinwheels
show us wind speed. |
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| The
faster we run the faster they spin. |
We
squeeze ourselves in a small space to see how compressed air
feels. |
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| How
far will the balloon move on the sting? |
Does
it move farther when we put more air? |
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| Let's
try pumping a little bit of air. |
That
was quick! |
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Page
last updated
April 1, 2006
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