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Make a fountain that doesn’t need an electric pump. This fountain was designed by Heron, a Greek teacher and inventor in 1st Century CE. Safety: This activity involves using an electric drill, a sharp knife and a hot glue gun. Adult help is required.

Here’s a great excuse for a trip up a mountain! Grab some bottles and learn why it’s hard to breathe at the top of tall mountains.

Normally, when you blow on a piece of card, it flies away. But in this activity, you can blow to pull the card towards you with the science of air pressure!

In this hands-on activity, you’ll make your own vacuum chamber and watch marshmallows turn into fluffy clouds of sugar!

Create a cool cloud inside a jar using these instructions.

Time for an Easter trick! There are lots of eggs around at this time of year, but this one is sure to raise some eyebrows. And when you’re finished, you can get your parents to help you cook your green egg, so you can gross out your entire family!

Written by Justin McGuire This activity may splash some water around, so try it over a sink or outside.