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.

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.

Work on division with remainders in this fun fourth grade math board game.

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

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

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 yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

This fun math card game is a great opportunity to discuss probability with your third grader.

Try a new approach to working with variables and equations by playing this tic-tac-toe game with your math student.

This is a great game to help your child learn number concepts in multiplication and division.

Use playing cards to learn about temperature as well as positive and negative integers in this fourth grade math game.

Okay, engaging in a graphing activity may sound ho-hum, but if you use fun data, it changes the picture entirely.

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

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

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

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

In this activity, your child will get a review of addition, subtraction, multiplication and division using classic domino pieces.

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.

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.

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

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

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 your third grader bombing around on a bike these days? Here's a way to put all that fun time together with some math learning, too.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Do you think heat can affect a plant's growth rate?

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.