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.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

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

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

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.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

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!

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

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!

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

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.