In this project, a basketball containing different psi is dropped to see how well it bounces.

This classic children's game demonstrates how sound travels through air vs. through a solid.

This science fair project idea investigates whether air has mass and weight.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

The objective of this science fair project is to investigate salt water density.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This science fair project idea demonstrates that plants give off water.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

This project examines whether people's taste perception is influenced by what they see.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

In this project children practice the scientific method while playing with puffy paint.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This science fair project idea investigates how the shape of an object affects drag.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

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

This science fair project idea determines which method of hand cleansing is the most effective.

This science fair project idea explores how length affects the weight a bridge can hold.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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