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.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

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 household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

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.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

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.

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

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

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

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

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.

Children are imaginative story-builders. Create a shoebox habitat with your child to put those budding creative instincts to good use.

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.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

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

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.