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

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

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

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

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

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

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

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.

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

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

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.

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.

Use this great no-bake recipe to save energy and keep cool.

Any time is the perfect time to whip up a delicious batch of fluffy pumpkin cookies.

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.

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

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

Celebrate Dia de los Muertos by baking pan de muerto. In this 5th-6th grade activity, your child will explore another culture while learning about baking.

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.

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

The crust is fun for kids to mix and roll out, and the filling overflows with vitamin and anti-oxidant packed berries!

Your child can turn cookie dough into a big pile of colorful painted fall leaves ready for eating!

Instead of loading up on mayonnaise based potato salad, your child can whip up something healthier: German potato salad!

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.

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

Make this delectable custard, meringue, and graham cracker pie will give your fifth grader practice with measurement and get him interested in the kitchen.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

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