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Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

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

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

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

Help your child learn about animal classification with this fun and delicious activity.

In this science fair project, students make their own rain gauge to measure rainfall.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.