Science experiments

Clucking bird:

Materials needed:Sharp pencil or nail, paper drinking cup, string, match stick, kitchen sponge(cut approximately 2.5 x 1.5 cm), water.

How to do it:

1. Poke a hole in the bottom of the cup with your pencil or nail.
2. Push one end of the string through the hole and tie it to the match stick, make sure the free end of the string comes out of the bottom of the cup.
3. Wet the sponge and wrap it around the string.
4. Squeeze tight and rub the sponge down the string