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

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

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!

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.

In this design challenge, your child will make a bottle rocket using typical household items.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This science fair project examines how seeds hitchhike on animals and clothing.

How powerful is the reaction between baking soda and vinegar? Find out here!

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

In this science project, the center of gravity is explored.

In this project, waves of vibrations are experimented with using water in glasses.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

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!

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

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