What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This science fair project idea identifies trees using a dichotomous key.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

In this project students experiment with making music using only glasses of water.

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

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

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

Discover whether cold or hot water from the faucet will boil faster on the stove.

Have your child kick off their summer vacation by making a miniature water slide!

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

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

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

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

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Find out which type of sponge holds the most water.

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

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.