Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

What happens when colored beams of light mix? You might be surprised.

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Make sourdough bread...and learn some colonial history and modern science in the process!

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

This basketball project explores the best way to make the perfect shot every time.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.