The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

The purpose of this science fair project is to build a basic radio.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

This project examines whether people's taste perception is influenced by what they see.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

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.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science fair project idea investigates how the shape of an object affects drag.

Will the shape of an ice cube impact how fast the ice melts?

Find out whether a longer airplane will fly farther or a wider paper airplane.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

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.

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

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

This science fair project idea determines if the color of light affects the growth of plants.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.