Instant Ice Experiment

Materials:
6 Water Bottles
Ice cubes
A bowl

Steps
Place 6 water bottles in your freezer. Make sure they are lying flat! From personal experience, this just works better. (If not, you can set the bottles upright)
Cool the water for 2 hours.
After 2 hours, take out one water bottle.
Set the bowl upside down on a flat surface. Place an ice cube on the bowl.
Quickly pour the water bottle over the ice cube.
Watch as the water instantly turns into ice as it touches the ice.

The science behind this experiment comes from the idea of supercooled water. Purified water can be chilled below freezing temperature and keep a liquid form. This happens because ice crystals require surfaces to grow on. Purified water does not have enough impurities in the liquid for crystals to form, so heavily cooling the water and pouring the water onto ice allows the crystals to form. It’s much easier for water molecules to turn into ice on top of existing crystals. The process of creating surfaces for ice crystals is called nucleation. As we said earlier, the process starts with an impurity on the bowl that holds the water. After one crystal attaches to the impurity, others form on top of it.

Picture Source: thebeakerlife.com