Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

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

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

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.

This experiment tests which gender is better at catching how a magician performs his tricks.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

This simple experiment serves as an introduction to the greenhouse effect.

This science fair project idea examines whether boys and girls differ in reflexes.

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

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