This is a fun experiment demonstrating what happens when acids
and bases react. Remember: What goes up must come down - So wear
safety specs unless you want a rocket through your eye socket! -
Rocket fuel- an Alka Seltzer tablet (or if you can't get any,
some bicarbonate of soda and vinegar will work ok) - Some warm
water - 35mm film container - Thin A4 card Make a tube out of
some of the card by wrapping around the film container (you need
to be able to get to the lid to snap it closed as quick as
possible) Make a cone out of some card and use as the nose of
your rocket. Make some rocket fins too Put 1/2 of an Alka
Seltzer tablet into the container and 1/3 fill with warm water
Snap the lid on as fast as you can (or it won't work) and turn
upside down Stand back and watch the rocket launch (don't touch
till the reaction has stopped) Try varying the amount of water,
amount of tablet and temperature of the water (If you want to
use vinegar and bicarbonate of soda instead, you'll want to
dissolve the bicarbonate