In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

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

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

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

In this design challenge, your child will create a parachute for a small toy using typical household items.

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.

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

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

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

This science experiment has students test whether a snail moves faster on concrete or dirt.

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 fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

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

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

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

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

In this fun activity, your child will create their very own solar oven to bake s'mores!

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

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.

Discover whether a metal will expand under hot water.

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