We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

This fall, make a leaf crown that will encourage creative play and your child's interest in the natural world while you help them build fine motor skills.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

This clay "painting" activity encourages and supports creative development and critical thinking skills.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Science fair project that examines condensation and the conditions needed in order for dew to form.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Challenge your learner to design and build a city of their own in this creative engineering activity.

The goal of this project is to create an exciting topographical map out of dough.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Explore if planting seeds in a certain direction will affect how fast it germinates.

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

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

This science experiment tests if dog saliva can really help heal wounds.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

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