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This project examines which style of central-air system filter traps the most particles from the air.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

This experiment examines if space objects become round after reaching a certain mass.

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

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

In this science fair project, students create their own miniature salt flats at home.

In this science fair project, students evaluate if the phases of the moon affect the way people feel.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This experiment will explore if magnetism has any effect on the regeneration abilities of flatworms.

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

How can you tell the difference between a spider and an insect? Your child will find out as he makes a tray of yummy creepy crawly snacks.

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.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

This science fair project idea examines whether people can decode scrambled messages.

In this activity, your child will be challenged to make a tower using paper cups.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.