In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Boys might wrinkle their noses at the thought of gardening, but we guarantee they'll like this activity! Make a recycled terrarium full of bug-eating plants.

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.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

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.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

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!

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

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

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.

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

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

This science fair project idea determines the probability of a coin landing heads or tails.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

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!

With a clear bottle and a few plastic straws, you can easily make a hummingbird feeder and demonstrate the effects of atmospheric pressure at the same time!

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

Test whether plants can grow without sunlight and water.