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The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

Liven up a lesson about graphing by helping your third grader compile a bar graph from his classmates' birthday data.

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

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.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

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 project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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!

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

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.

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

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

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

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

This science fair project idea investigates food preference of birds.

Determine whether the application of Febreeze will lower the bacterial count.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

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 experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.