Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

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

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

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.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Pair a planetarium visit with this fun art project that mimics the look of far-off galaxies.

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

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

Help your child measure breezy weather in her environment by making a wind vane for kids, a simple version of the classic scientific measurement tool.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

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

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

Slip some science into storm watching with a homemade rain gauge!

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

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.