This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Help your child measure breezy weather in her environment by making a wind vane for kids, a simple version of the classic scientific measurement tool.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Create a bee garden to help shelter bees in your area.

This science experiment tests if dog saliva can really help heal wounds.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Discover flight initiation distance as you play around in the park with this fun bird watching project!

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Many ancient cultures used the rising or setting sun to create calendars. Observe the setting sun once a week to come up with your own solar calendar!

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.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Children use their design thinking skills and powers of observation to create and construct a bird nest.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

You and your child can create this beautiful butterfly mobile for hanging anywhere in the home (and learn about this magical creature while you're at it).

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

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?

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

This biodiversity project examines the biodiversity in your own backyard.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.