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

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

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

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!

If it's Easter, it must be time for egg hunts. But we have to admit, most kids would rather take a bite out of a yummy cupcake than a hard-boiled egg.

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

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.

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.

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

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 science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

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!

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

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

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

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.

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

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

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

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

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

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

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

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

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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 deals with the qualities of shade on a sunny day.

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.