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 science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

Compare different remedies for cooling the mouth after eating spicy food.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Which bread molds fastest? Explore the different kinds of breads and how quickly they mold, along with the role of preservatives.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

This project explores the interaction between air pressure and playing surface in determining a basketballâs bounce.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Determine if gender affects the ability to identify different smells.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This experiment investigates the relationship between the temperature of a candle and its burn rate.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Learn about how sugar fermentation and growing yeast in this easy science project! Yeast is a eukaryotic microbe that puts the fun in fungus!

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

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

This experiment will examine and precisely measure the amount of sugar in various sodas.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.