Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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

This science fair project idea determines which method of hand cleansing is the most effective.

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

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

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

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

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.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

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

Help your child plant a "tea garden": a garden made of herbs for making teas.

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

This science fair project examines how seeds hitchhike on animals and clothing.