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

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Are you looking for an out-of-this world activity that's both fun and educational? This solar system garland is a great way to introduce your child to astronomy.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

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

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

In this project, a model of a submarine is built to simulate the buoyancy and displacement of water and air.

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

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!

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

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.