Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

This simple experiment serves as an introduction to the greenhouse effect.

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

Make sourdough bread...and learn some colonial history and modern science in the process!

This basketball project explores the best way to make the perfect shot every time.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

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

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

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.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

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

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

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

I scream, you scream, we all scream for homemade spearmint ice cream!

In this experiment we will be determining whether birds prefer certain colors of seed.

In this science fair project, students use the streak test to tell minerals apart from each other.

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Test whether plants can grow without sunlight and water.

This science fair project idea demonstrates that plants give off water.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

Make a spring collage with your child to get them outside and those creative juices flowing!