How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

This science fair project idea determines the probability of a coin landing heads or tails.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This project explores ways to prevent static electrical shocks.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

This science fair project idea explores whether white light can be separated into different colors.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

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!

This science fair project idea explores substances that cause a bubble to last longer.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This project examines what types of objects burn and which burn faster and cleaner.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

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.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

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!

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.