3. Turning water into ice in a second
An illusionist pours some liquid into a cup and a moment later it’s turned into a cube of ice.
The trick here lies in the cup which already contains a piece of ice along with a sponge that’s the same color as the cup. The sponge is fixed to the bottom of the cup and will absorb the water that is poured in. So when the magician turns the cup upside down, the ice falls out into his hand while the water remains in the sponge.