This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

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

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

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.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

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

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

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.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Have your child kick off their summer vacation by making a miniature water slide!

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.