This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

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

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Take a dive into the candy jar with this yummy science experiment.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Learn how to use the Punnett Square to predict the gene combinations of dominant and recessive traits in this fun and easy genetics science project!

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

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.

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

The project researches how lubricants affect the mechanical advantage of a pulley.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Checkerboard play challenges students to use spatial reasoning and computational thinking.

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

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.

This science fair project determines the quality of a given product.

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.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

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

This science fair project examines whether ocean water can be made safe to drink.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.