Test your friends to find out if you can replicate the placebo effect's incredible results.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Help your young scientist celebrate the wonders of the night sky in the comfort of your own home.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

This easy project for little hands uses mushroom spores to make an imprint of the mushroom, and the result is very beautiful.

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

Brighten up your home with this fun activity! Make a summer sun print and teach your child the art of easy print making.

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

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

Inspire your child to learn about an amazing animal as she creates her very own polar bear habitat.

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

The fish most kids see is usually filleted, and it's hard to see how it came from a lake or sea. This cool gyotaku activity blends life science with art!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Develop your child's green thumb with this easy planting activity. These plants are guaranteed to grow fast and are "brown-thumb" proofed!

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

This science fair project idea experiments with spinning color wheels and optical illusions.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.