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Learn about the growing app design field by designing a new or improved app for smartphones.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

Multiple-choice test questions can be confusing. Here's a toolbox of tricks and strategies to help your teen become a multiple-choice master.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

In this science fair project on the relationship between distance and time, kids explore the behavior of gravitational acceleration through direct observation.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This science fair project idea explores whether the color of surroundings affects human mood.

Do suds equal more clean or does a sud-free cleaning agent works just as well or even better?

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

This project examines whether sugar substitutes are as sweet as real sugar.

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.

This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

Do you think heat can affect a plant's growth rate?

What colors can dogs see? Do they only have black and white vision, or can they see other colors too? Find out in this cool science experiment!

This science fair project idea determines if the color of light affects the growth of plants.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.