Here's an easy project: create a homework helper bookmark so your fourth grader can write down assignments and mark the pages he needs to read.

This experiment examines if space objects become round after reaching a certain mass.

This project determines how much the rebound rates of tennis balls change after ten games.

Hone observational skills and introduce the basics of data interpretation with this data gathering activity all about the different colors people wear.

This science fair project idea examines the differences between bottle water, filtered water, and tap water.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

In this physics project, you'll learn how to find the maximum height of a projectile using some math and trigonometry.

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 pointillism as they make their own self-portrait in the style of famed American artist Chuck Close.

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.

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

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

This experiment evaluates if a noisy environment makes it harder for test subjects to perform tasks that require hand-eye coordination.

Learn how to relight a candle by lighting the vaporized wax in the smoke, and test how various kind of wax and candle brands relight differently.

This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

Get your middle schooler to explore symmetry and practice art and math measurements; have her draw the other half of a given face!

Examine whether males or females are more likely to have a higher center of gravity.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

In this science project, the center of gravity is explored.

This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

Explore the relationship between personality traits and birth order effects.

Learn about emulsification and bile's roles in digestion, and investigate how the digestive enzyme lipase breaks down lipids.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

Examine the effect of pressure on carbonation in soda.

Use your kindergartener's handprint to create a sweet and personalized apple craft.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

Most parents probably wouldn't mind subtracting 8-9 years off their age. Here's a fun third grade subtraction activity that may do just that.

In this science fair project, high school students will try to determine the mathematical patterns in JS Bach's two movement preludes and fugues.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.