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.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

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

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

This science fair project will help students learn about non-vascular plants, such as mosses.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This project compares the strength of one, two, and three-ply toilet paper.

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

This science fair project idea determines if the color of light affects the growth of plants.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

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

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

This science fair project idea explores whether white light can be separated into different colors.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

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

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Determine if gender affects the ability to identify different smells.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.