Create a giant foaming reaction and wow your friends with the classic science demonstration! With just a few simple ingredients, you can make something that looks like toothpaste being squeezed from a tube -- but so big, it must be for elephants!

In this science activity you will examine circular objects and see what you can discover about their sizes. As you explore, you might be surprised at how useful the results can be -- maybe it will inspire you to save up for a bike with bigger wheels!

With all the frustration you might have endured coping with dead batteries, it might surprise you how easy it is to make one out of household materials. Try out this activity, and it might just charge up your imagination.

If you were to dig a big hole straight into the Earth, you would notice the temperature getting warmer the deeper you go. This is because the inside of the Earth is full of heat. The heat released is called geothermal energy. In this activity, students will build their own geothermal power plant. The steam made from this activity will turn a toy pinwheel.

Science is super cool -- especially when ice and salt are involved. Supercool water to below its freezing point and then discover how to make ice on demand in this experiment.

How do you know when a chemical reaction has occurred? This experiment will help you learn the indicators of a chemical reaction.

Learn about the elements used to create the spectacular colors seen in firework celebrations. Color your own firecracker, then use paper and a straw to design a system to launch your firework.

Imagine this challenge: You have two glasses of water -- one empty and one full. You want to pour half of the full glass into the empty one. The twist? You aren't allowed to pick up either glass! Can you get the water to "walk" between the glasses using nothing but a paper towel? Try this activity to find out!

Have you ever wished your drawings would come alive and the stick figures or objects on your paper could move around? What sounds impossible is actually not! In this activity, you will make your drawing more around be letting it float on water. What makes this possible is the interesting chemistry of dry erase markers.

Have you ever tried to reach for something that was too far away? What tool could help you reach an object? Try inventing your own grabber to use at home.

Make a fun balloon powered DIY car from just a few peices of recycled materials, like a juice box and bottle tops. Chances are you have all the materials you need for this entertaining craft right at home. It's also an easy project that young chldren can make from start to finisih

In this activity you can find out how to make your own Alka-Seltzer lava lamp. How will changing the temperature of the ingredients change the behavior of the colorful blobs in your laval lamp?

In this activity, you will use recyclable materials to make your own wall marble run! A marble run is a fun toy and a great way to earn about physics concepts like kinetic and potential energy. Do you think your marble will make it to the end of the track?

How do scientists and engineers control robots that drive around other planets millions of miles away? It is nowhere near as easy as driving a toy remote-control car here on Earth. In this activity, you will experience some of the challenges you face when driving a "robot" that you cannot see!