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.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense 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.

Have your child observe, measure and record the amount of space objects occupy, and you'll have an inside space explorer on your hands in no time!

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

Here's a guide to help you design a challenging pool obstacle course for your elementary school children with ordinary pool toys and household objects.

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

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

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.

How much does 100 weigh? Play this fun guessing game with your child to commemorate the 100th day of school.

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.

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

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

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

Help your third grader craft a homemade version of this classic strategy game, using just an old egg carton and a few beads!

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!

Make a kaleidoscope at home to teach your child about the color spectrum and mirror science.

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!

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

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.

It's not always bad to think negatively -- step into the creative and unique world of negative space drawing!