This science fair project idea compares biodiversity between drops of water.

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Your child can use leaves and grass to create his own outdoor art in celebration of Earth Day...all he needs are is the great outdoors and some creativity!

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This classic children's game demonstrates how sound travels through air vs. through a solid.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

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.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Find out whether a longer airplane will fly farther or a wider paper airplane.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

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.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Transform your uncomfortable wooden shoes into charming mini planters!

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

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

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

This science fair project idea investigates the hardness property of minerals.

This science fair project explores how osmotic pressure forces water through the root up into the plant.