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Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

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.

Use playing cards to learn about temperature as well as positive and negative integers in this fourth grade math game.

Science fair project that cultivates slime mold and monitors the stages of its development.

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

A fun activity for a hot day, this will give young kids a chance to experiment with beginning science and math â and splash around in the process!

This science fair project explores how salt and sugar affect the melting rate of ice in water.

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

This science fair project idea determines which flower lasts the longest.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

Homemade Halloween treats make great party foods for an All Hallow's Eve get together. These four homemade Halloween treats are scary-good.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

This project concerns activity happening millions of miles away, on the sun.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

This project examines the concentration of dissolved oxygen in water, with and without oil.