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.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

This science fair project idea investigates how magnetism can defy the force of gravity.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

This project determines what category of person is most likely to be ticklish.

In this project students experiment with making music using only glasses of water.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Find out whether putting something on top of a plant will inhibit its growth.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

Discover whether a metal will expand under hot water.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

This project investigates the affect of storage temperature on microwave popcorn.

The objective of this science project is to determine the length of time for different seeds to germinate.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.