Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Start your toy engines -- this is going to be a fast and friction-filled race!

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

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

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.

This science fair project idea investigates how magnetism can defy the force of gravity.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

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

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.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

You don't need to head to the Arctic to experiment with life in an igloo. Learners can build their own ice igloo at home from water and empty milk containers.

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.

Plants and light seem to be good buddies, but how far does the friendship really go?

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!