You and your buddy will have so much fun with these ice experiments that are easy to do outdoors!
-liquid food coloring (do not use paste)
- Take a balloon and add about 0.5-1 tsp of food coloring depending on how big a ball your making or how strong you want the color.
- Next fill the balloon with water and tie a knot in the end.
- Put the balloon in the freezer and leave for 5-6 hours. Take the balloon out when it is solid enough on the outside to give a squeeze without breaking and there is still water swishing around inside. You may need to adjust the time depending on how big the filled balloon is, so keep checking.
- Over a sink carefully pull the balloon away. Depending on how thick the ice is you should get a natural break hole in the ice as the weight of the water causes the ice to break. This hole or two provides just enough space to add little toys
Melting Ice Science Experiment with salt and liquid watercolors
- Bowls or dishes (for making the ice)
- A large tray with sides
- Liquid watercolors
- Fill many different sizes of bowls with water and left them to freeze overnight.
- Set up your melting station: Loosen the ice from the bowls with warm water and set them in a big plastic finger pain tray with a raised edge.
- Add Salt (Rock salt, or another coarse salt)
- Once the salt is melting the ice, squeeze out the liquid watercolors into jars and add a dropper to each color. You can start decorating your ice.