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

Here's a fun way for your child to exercise his writing chops...and prove a point! A great way to practice persuasive writing.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

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

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot initiate a domino effect.

For some good "green" fun, pull out your blender. A spinach smoothie?! You better believe it! And kids will not only slurp it up, they"ll beg for seconds.

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.

Create a compass rose from sidewalk chalk in this summer geography project!

Your fourth-grader can hone her baking skills with this classic American recipe the whole family will enjoy!

In this science fair project, students create their own miniature salt flats at home.

This science fair project idea examines whether boys and girls differ in reflexes.

Construct and experiment with a periscope using reflected light rays to gather an image.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Make a creative Father's Day art card to celebrate your family's beloved guy!

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

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

Learn how to make a trick-or-treat bag for Halloween. See how to make a decorative trick-or-treat bag with this Halloween craft tutorial.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Help your child to make a beautiful Africa mask to help her reinforce important spatial and compositional skills.

In this science fair project, students make their own rain gauge to measure rainfall.

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

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.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

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 elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

This science fair project teaches students about wilting and browning of salad greens.