How well can people recall what they have observed. Test your knowledge in this fun experiment.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

In this science fair project, students create their own miniature salt flats at home.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

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

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

This science fair project idea examines which type of insulation holds in the most heat.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Have your child kick off their summer vacation by making a miniature water slide!

This science fair project idea explores substances that cause a bubble to last longer.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

In this design challenge, your child will create a parachute for a small toy using typical household items.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

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

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

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

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

In this activity, your child will be challenged to make a tower using paper cups.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.