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In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

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

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Using a toy race car kids create a visual model of the Doppler Effect.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Plant a mini herb garden and teach your child about science and nature.

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!

This surprisingly good glue recipe comes from common kitchen items.

This science fair project will help students learn about non-vascular plants, such as mosses.

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

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Introduce your child to preliminary science concepts by challenging them to do this fun and simple cloud observation activity.

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

Kids are sure to be entranced by the magic of the ocean when they create their very own ocean in a bottle.