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

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

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

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

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.

Using a toy race car kids create a visual model of the Doppler Effect.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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

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

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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 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.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

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

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

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 project children discover, identify, and sort seeds from a variety of fruits and vegetables

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

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

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.