Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

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

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

This science fair project idea examines whether boys and girls differ in reflexes.

Take a dive into the candy jar with this yummy science experiment.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

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.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

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.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

This activity challenges your student to use spatial reasoning and computational thinking to program multiple robots.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

Check out this cool science fair project on identifying rocks and minerals for kids.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.