For our science experiment today, we made elephant’s toothpaste. We made the kid-friendly version using hydrogen peroxide (3%), yeast, food coloring, and dish soap. Even though we didn’t use the 6% hydrogen peroxide as suggested by the recipe, we were still able to create a reaction, but just a little bit slower. Nevertheless, the kids loved the overflowing bubbles.

Matthew getting ready to pour the yeast mixture (catalyst) into the hydrogen peroxide, food coloring, and dish soap mixture.

The reaction is now in motion and the boys are anxiously waiting for more bubbles.

More bubbles.

As usual, I have Matthew write a short page of what he had just learned in his science notebook, and this is what he wrote:

I learned that the yeast acts as a catalyst, which makes the hydrogen peroxide release oxygen faster.

The boys enjoyed the experiment so much that we did three different ones with blue, red, and green food coloring.