Wild-type and GAPDH mutant Caenorhabditis elegans were used as an example of how glucose or sugar affects the lifespan of humans.

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.

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

This science fair project idea teaches what wildlife rehabilitators do and about the process of wildlife rehabilitation.

Science fair project that determines the correlation between wind direction and subsequent weather patterns.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.

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

Are you able to endure long periods of exercise? Find out if snorers can exercise longer than non-snorers.

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

The project determines which type of birds prefer which type of birdseed.

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

In this "paper and pen" science fair experiment, students will research the difference between standard time and astronomical mean time.

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.

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

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.

The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.

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

This science fair project determines how oil affects a bird’s waterproofing.

Demonstrate how tracks are formed by pressing your hand into a cornmeal mixture, then reverse the process and make prints of the track.

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.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

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.

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

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

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?