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This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

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

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

Slip some science into storm watching with a homemade rain gauge!

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.

Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

In this experiment, you will evaluate whether or not a diet that is supplemented with "brain-enhancing" foods can help improve memory.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

Free science fair project idea examining how different types of water affect plant germination and growth.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

A mixture of botany, exploration, Abstract Art and Pop Art color theoryâthis activity never gets dull! Start by exploring outdoors and finish with indoor art.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

What better way to nurture your child's imagination than by making a fairy house out of materials found in nature!

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.