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Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

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.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

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

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

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

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

This project investigates the affect of storage temperature on microwave popcorn.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

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

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

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

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

This science fair project examines how seeds hitchhike on animals and clothing.

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

This science fair project idea explores the different properties & interactions of sugar molecules.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

This science fair project idea examines which type of insulation holds in the most heat.