My son's fourth grade teacher had them do this experiment which his Cub
Scout troop later used for their booth at the Scout-a-Rama.
It was a favorite! This only works with the white film cannisters because
of the way they fasten on top.
You will need:
- The center tube from a roll of toilet paper
- A paper plate
- White film cannister
- Some water
- One Alka Seltzer tablet
First you need to make your rocket launcher. Tape the tube to the paper
plate in an up position. Decorate as desired. Put a small amount of water
in the film cannister, then take it, the launcher, and an Alka Seltzer
tab outside.
Put the launcher on the ground in a clear area, drop the Alka Seltzer
into the cannister, then quickly put the lid on the cannister, drop it
in the launcher upside down and stand back!
This is a great experiment. We found that you can even use half a tab
and get good results. See whose can "fly" the highest. I've been told
this also works with baking soda and vinegar, but haven't tried it. Have
fun!
Contributed by Carol Gibson, csag@impulsedata.net
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