With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Find out whether a longer airplane will fly farther or a wider paper airplane.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

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

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This science fair project idea investigates if fats add to the flavor of food.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

This science experiment has students test whether a snail moves faster on concrete or dirt.

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

This science fair project will help students learn about non-vascular plants, such as mosses.

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

The objective of this science project is to determine the length of time for different seeds to germinate.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

This science fair project examines how seeds hitchhike on animals and clothing.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

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

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

Explore if planting seeds in a certain direction will affect how fast it germinates.