Elephant Toothpaste

The video below shows when I made this awesome foam substance known as Elephant Toothpaste. But what exactly is it?

When hydrogen peroxide and yeast are mixed together, a foam is created. The foam is made of little bubbles of oxygen, which are stored inside the soap. The yeast  removes the oxygen from the hydrogen peroxide and because it did it so fast, it created bubbles!

The  scientific term for this is called an Exothermic Reaction…but, isn’t it more FUN to call it Elephant Toothpaste!?!

 

It is called Elephant Toothpaste because it looks like a lot of toothpaste coming from a tube. Besides my brother, the only thing that could possibly use that much toothpaste an elephant!

Clean up is a snap because this stuff is made up of oxygen, soap and water! I wouldn’t recommend putting this on your teeth though. Even though it’s not poisonous, it probably doesn’t taste very good!

Thank you for reading my post! If you have any suggestions for science experiments or other things I can create, just leave a comment!

 

The shocking truth about multimeters!

In science today we learned about multimeters! With my dad’s permission and supervision,  I got to test a few things out.

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The first thing I did was test a  AA battery. To test a battery, you first have to identify which side is positive and which side is negative. After I did that, I stuck one lead on each side and waited for the voltage to show on the meter. The voltage was 1.56 VDC (volts direct current).

After that I tested an outlet on the wall! That time I had to be very careful not to touch any metal because if I did I could get shocked!!. Most outlets and switches range from 110-120 VAC (volts alternating current) when they are “healthy.” Our outlet was 120.6v!!

I then tested a 9 volt battery, the voltage was 9.39! I also tested a C battery, which had a voltage of 1.627.  Just for fun, I tested another AA battery. This time the voltage on it was 1.514. That means this battery had less power than the first battery that I tested!

I also learned that light bulbs do not store electricity as it measured 0 volts! 💡😎

Keep coming to Learning in Pajamas to find out what else I am doing!!