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In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

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 science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This science fair project idea explores the egg's thin membrane.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Do you think heat can affect a plant's growth rate?

In this activity your child will create their very own marble maze!

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.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

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.

This science fair project idea determines what household items are good conductors of electricity.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This science fair project idea investigates if fats add to the flavor of food.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

This science fair project teaches students about wilting and browning of salad greens.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

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