Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

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.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

This experiment will evaluate if chewing gum affects students' test performance.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

This science fair project idea examines the reason boats are shaped and engineered.

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

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Learn with makes water molecules work with this fun and easy science activity!

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

This science fair project teaches students the differences between fruits and vegetables.

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

This project explores whether there is an effect on people, including heart rate and self-expressed mood, when they are exposed to different types of music.

Use pepper and soap to discover some fun facts about the properties of water.

Make edible amber fossils with your second grader to explore the fascinating world of science!

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!