This science fair project idea explores how length affects the weight a bridge can hold.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

This science fair project teaches students about wilting and browning of salad greens.

Help your child make a beautiful homemade sandcastle that will last!

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

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

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

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.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Test your friends to find out if you can replicate the placebo effect's incredible results.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.