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

This science fair project idea explores whether white light can be separated into different colors.

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

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Discover how and which salt melts ice the quickest.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

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

Help your child make a beautiful homemade sandcastle that will last!

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

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.