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.

Science fair project that examines the effects of soap on the surface tension of water. How does soap affect the surface tension of water?

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

This science fair project idea examines whether music has an effect on a person's ability to complete a simple task that requires concentration.

Research hemispheric brain dominance in order to determine if you have a dominant side. Test foot, ear dominance. Record observations.

If your mom likes flowers, make her a sweet gift that she'll treasure with this fun craft, a pretty Pressed Flowers Card!

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

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.

This science fair project idea explores what common compounds can be easily separated out in a centrifuge.

Planning a beach vacation? Here's a cool nature craft you can make in the sand with your child.

Science fair project which tests which antacids are most potent by measuring how well they neutralize the acid in lemon juice.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

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

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

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

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

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

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.

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

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

Discover which absorbent material is the best; the Shamwow, paper towels, or cotton towels.

Your child can use Styrofoam, green paint and toothpicks to create her own cactus plant sculpture.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Science fair project that illustrates the properties of black holes in space.