This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

This project examines which type of dance burns the most calories.

This flexible activity for preschoolers features jellybeans, counting, coloring, and the five senses.

Study structure of the lens found in the human eye and determine whether it is concave or convex. Prepare a ray diagram, formulate hypothesis.

Sure, angles can be confusing. Here's a fun activity to brush up your child's knowledge of these geometry essentials.

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!

Help your child add some flair to the family garden with pencil pinwheels!

This science fair project idea explores how length affects the weight a bridge can hold.

Stir up some friendly competition with this tabletop bow and arrow craft!

Creating a book is one thing, but creating a codex is a whole different ball game.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Try a fun painting activity this Valentine's Day with your child. He can design abstract art and learn about color theory in an easy way!

Next time you're headed out on the road with your fourth grader, try this alphabet-geography game that the whole family can play.

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!

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

This basketball project explores the best way to make the perfect shot every time.

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

Check out this fun science project idea on ecological succession and learn the main difference between primary and secondary succession.

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.

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.

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.

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.

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.