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What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

This science fair project will help students learn about non-vascular plants, such as mosses.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

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

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Try this chemistry experiment with your curious kid and get some "shocking" results!

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

Do you think heat can affect a plant's growth rate?

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

This science fair project explores how osmotic pressure forces water through the root up into the plant.

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

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

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

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Help your child make a beautiful homemade sandcastle that will last!

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.

Make sourdough bread...and learn some colonial history and modern science in the process!

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.