This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

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

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

This science fair project idea explores substances that cause a bubble to last longer.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Find out whether matte or shiny nail polish lasts longer.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

This science fair project idea determines the probability of a coin landing heads or tails.

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

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

This science fair project idea examines which type of insulation holds in the most heat.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Explore if planting seeds in a certain direction will affect how fast it germinates.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

Find out whether packaged seeds actually do expire in this new science fair project idea.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

The goal of this project is to create an exciting topographical map out of dough.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.