Construct batteries that make electricity from fruits with this fun science fair project.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

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.

With a clear bottle and a few plastic straws, you can easily make a hummingbird feeder and demonstrate the effects of atmospheric pressure at the same time!

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Explore if planting seeds in a certain direction will affect how fast it germinates.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

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

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

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

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.

Science fair project that determines whether mass and weight are the same or different.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

Which do you prefer: real or artificial? Try this sweet little taste experiment to help your kids develop a better awareness of the food they consume.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

What happens when colored beams of light mix? You might be surprised.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.