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Using plants and other items from the outdoors and clothing they already own, your kids can dress up as any one of the four seasons or simply as a Garden.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

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

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

Do heavier objects fall faster than lighter ones? Students learn the answer by watching the effect gravity in a vacuum has on a coin and a feather.

This activity will help your child review science concepts, learn new ones, and become familiar with examples of various concepts in science. Plus, it's fun!

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

This science fair project idea explores discover whether there are any patterns or trends in the memories between different genders.

Research basic components of vacuum cleaners, consult vacuum cleaner manufacturers for advice. Design vacuum with attachments that change automatically.

Why are some pennies shiny and others dark and dull? Find out with this cleaning copper coins experiment, which transforms dark pennies to bright ones.

In this science fair project, students investigate the applicability of Benford's Law to many sets of everyday data.

Help young learners discover why catÃs eyes glow in the dark with this simple experiment

Research different measurement systems, design your own new or improved system that can measure something difficult to measure with traditional systems.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

Science fair project that builds a magnetometer and demonstrate its uses.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

Research and understand basic computer science. Build a simple computer, following instructions found online. Design a new or improved feature.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Monitor the impact learning how to play chess has an academic performance. Divide subjects into two groups compare GPA

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.