This science fair project idea investigates which objects float and sink in honey, water, and oil.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

This science project idea examines the effect of microwaving on various objects.

This science fair project idea produces sounds by creating vibrations using different objects.

This project examines what types of objects burn and which burn faster and cleaner.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Demonstrate how to tell the age of an egg without having to crack it open.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

This science fair project idea deals with the qualities of shade on a sunny day.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

Science fair project that determines whether mass and weight are the same or different.

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

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