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

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

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

This science fair project idea explores substances that cause a bubble to last longer.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

In this fun activity, your child will create their very own solar oven to bake s'mores!

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

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

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

In this project children practice the scientific method while playing with puffy paint.

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

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

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

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

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Slip some science into storm watching with a homemade rain gauge!

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.