A fun and noisy combination of science and fun! This homemade noise putty is easy to make, using only 3 ingredients, and kids love it. A great rainy day activity.
Add a couple of drops of food coloring, if desired. Set aside.
In a small bowl, mix warm water with Borax.
Add to glue/water mixture, 1 tsp. at a time, and stir for 1 minute. It will go from liquid to a nasty stringy mass.
Work putty with your hands until it isn't sticky anymore.
Shove putty into a small cup. A narrow cup with tall sides works will for friction. Friction is what makes the putty noisy when you put your fingers into it.