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

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

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

In this experiment you will replicate the mummification process by making a hot dog mummy.

This science fair project teaches students about wilting and browning of salad greens.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Make a backbone model to explore human anatomy and life science.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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?

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

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

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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?

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

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

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

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