materials: cup,[ half a cup of ] water,spoon,baking soda,vinegar and raisins.
method:
step one: Put the cup outside.
step two: Pour half a cup water into the cup.
step three: Put a teaspoon of baking soda until it dissolves.
step four: Sir the water and baking soda around.
step five: Add a little bit of vinegar with it.
step six: get a pinch of raisin and put it into the cup.
which it bounce around.
No comments:
Post a Comment