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This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

How powerful is the reaction between baking soda and vinegar? Find out here!

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!

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

In this science fair project you will make a model of a cell membrane using very simple material.

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

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

This science fair project idea compares biodiversity between drops of water.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

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

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

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

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

This project determines what category of person is most likely to be ticklish.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

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

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?