The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Find out whether a longer airplane will fly farther or a wider paper airplane.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

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

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.