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When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

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

Discover whether a metal will expand under hot water.

In this experiment we will be determining whether birds prefer certain colors of seed.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

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!

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

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

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

This science fair project idea examines the reason boats are shaped and engineered.

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

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Determine if gender affects the ability to identify different smells.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

This science fair project idea investigates the difference in reaction times between boys and girls.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this fun activity, your child will create their very own solar oven to bake s'mores!