This science fair project idea explores the egg's thin membrane.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

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

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

In this science fair project, students use the streak test to tell minerals apart from each other.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

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

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This science fair project teaches students the differences between fruits and vegetables.

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

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

This science fair project idea explores whether white light can be separated into different colors.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

This science fair project idea determines the most effective method of preserving food.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Construct and experiment with a periscope using reflected light rays to gather an image.

Examine the effect of pressure on carbonation in soda.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

This science project teaches students to classify different shapes of leaves.

This science fair project idea determines what household items are good conductors of electricity.