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4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

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

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

The goal of this project is to create an exciting topographical map out of dough.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Construct and experiment with a periscope using reflected light rays to gather an image.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

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 create their very own marble maze!

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

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

This science fair project idea investigates how the shape of an object affects drag.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

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