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Help your kindergarten scientist explore an important part of earth science: how soil retains water.

Help your kindergartener identify and sort eight different kinds of common seeds on this "seed wheel" plate you can use all growing season.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

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.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

This fascinating science fair project explores eye color genotypes.

Your preschooler will engage their senses by making a scented pumpkin to decorate your house.

Science fair project that determines whether spreading a moss soup over an area increases moss growth.

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

Examine the connection between temperature and chemiluminescence.

This science fair project idea determines which method of hand cleansing is the most effective.

This project examines whether more expensive golf balls translate into better results on the golf course.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

Help your first grader design and create his very own bird feeder out of an empty milk carton.

An home science experiment for older students that teaches about the science behind heat.

This science fair project investigates which of two learning modes most commonly used in school, visual and auditory, is better for information retention.

The goal of this fun science experiment is to explore the limitations of sight and learn working of the human eyes.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

Here's a fun activity to reinforce the physics concept of stored energy for your middle schooler.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Science fair project in which you will create your electricity by making a homemade battery using salt water, a nail, and a copper wire.