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

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

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science fair project idea focuses on the production of oxygen by plants during the photosynthesis process.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Get a cool science project idea on a photovoltaic cell and explore the various factors that affect the energy output of the photovoltaic cell.

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

Kids learn about the color rendering index by finding the best lightning for makeup in this fun and original physics science fair project idea.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Determine how good we are at direct and indirect observation.

What does yeast eat? Sugar, of course. But yeast also has some powerful enemies in the form of antifungal agents! Kids test them out in this fun yeast lab.