Investigate which substances are most effective at removing salt from water.

Check out this hot project idea to culture bacteria and determine if the claims about the anti-bacterial properties of curry and cinnamon are true.

Discover whether the color of text correlates with ease and speed of reading.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

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

This science fair project idea determines whether the hand a person writes with relates to which side they will choose from in a fake taste test.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Determine whether people can actually taste the difference between âhealthyâ cookies and the traditional version.

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?

Could there be toxic chemicals lurking in the cupboards and closets of your home?

In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Science fair project which compares the rates of photosynthesis for various light sources. Which type of light will be best for photosynthesis and why?

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

In this science project, learn about soil porosity and measure the percent porosity of sand, silt, and clay.

Science fair project that compares the properties of different fabrics to determine whether natural or synthetic fabrics are better at wicking away moisture.

Create a double-slit interference out of cardboard. Produce an interference pattern that demonstrates the wave and particle characteristics of light.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

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 compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!