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

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

When you're studying the Mayflower, numbers can be an important part of the history...and a great chance to practice elementary math!

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

Use a recycling project to hone your childâs sewing skills and clean up her art supplies when she turns the leg of an old pair of jeans into a storage basket.

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

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

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

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

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

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

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.

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!

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.

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

Check out this game that provides an enjoyable way of demonstrating how recorded results can be expressed in whole numbers, fractions, and decimals.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Teach your fifth grader an important math concept with this quick and simple activity that shows them how to divide whole numbers by fractions.

For a fun activity that takes the dull out of decimals, show you child how to gain a better understanding of decimals...as dollar amounts!

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

This activity will further your child's ability to interpret graphs and apply math skills in a real-world situation.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

This simple experiment serves as an introduction to the greenhouse effect.

This activity with add some fun and education to long car trips. Perfect for family vacations!

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

Simplify fractions with your child in this fast-paced math card game.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.