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

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

This science fair project will help students learn about non-vascular plants, such as mosses.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

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 if crystals will absorb food dye and if colors will mix by the process of diffusion.

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

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

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Making your own glass cleaner is easy, effective and inexpensive!

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

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.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Do different types of oil mix or stack? Find out in this science fair project idea!

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

This project examines whether people's taste perception is influenced by what they see.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

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

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

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

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