How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

This science project teaches students to classify different shapes of leaves.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Discover how and which salt melts ice the quickest.

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

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

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

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Create a bee garden to help shelter bees in your area.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Science fair project that examines condensation and the conditions needed in order for dew to form.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Challenge your learner to design and build a city of their own in this creative engineering activity.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.