Is it a square or a circle? See if you can trick your friends with this zany science project!

This science fair project idea investigates if webbed feet help a duck (and others) swim.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

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

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

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 activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

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

How powerful is the reaction between baking soda and vinegar? Find out here!

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.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

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.

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

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

This science fair project idea explores whether talking to a plant will help it grow.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

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

Have your child kick off their summer vacation by making a miniature water slide!

In this activity, your child will be challenged to make a tower using paper cups.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

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.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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

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