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

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

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

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

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

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.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

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

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

This science fair project idea investigates how color affects temperature.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.