How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

How much does 100 weigh? Play this fun guessing game with your child to commemorate the 100th day of school.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

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!

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Does your fifth grader need a study buddy for geometry? Forget about a tutor. Help him make his own geometry dictionary!

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Here's a hands-on way to help your child understand how common fractions can be equivalent.

How powerful is the reaction between baking soda and vinegar? Find out here!

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Try this entertaining and educational math activity that will teach your child how to add and subtract decimals.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

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.