Exploading Soap

Today we learned about Charle's Law, by making soap explode!

First we had two pieces of soap. One was Ivory brand, and the other one generic.

We compared the two soaps. We learned that the Ivory soap was about the same weight, but it was bigger, therefore it must mean that the Ivory soap was lighter. Anna guessed that it was lighter because there must be air bubbles. We put them in water. the ivory soap floated and the other soap sank.

Next we put the soap in the microwave, and that's when things got interesting! First we put the generic soap. At first it looked it liked it was expanding, then it turned into what looked like a bad pancake. Plus it smelled.

Next we tried the Ivory soap. It grew bigger and bigger, and it looked like whipped cream!

When we took it out and played with it still felt like soap, but weird.

We played with it and it was kind of powdery. It was still soap though, and Mina even used it to wash her hands.

Look at the difference some little air bubbles make!

So we learned that Charle's law is that when gas gets heated it expands. That is why the soap behaved the way it did.

Anna: It stunk!

Mina: It was the one of top three most stinkiest experiments we have done.

Jack: That the one didn't explode.

Science Fact: Canola oil is actually rapeseed oil but the name was changed for marketing reasons.