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

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

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

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.

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.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

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

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

Add these fun chocolate Groundhog Day cupcakes to your holiday desert recipe repertoire! They're fun to make with your kids and a delicious winter snack.

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.

Whatever is stacked in your cupboard can be used to help your child learn how to compare fractions and decimals. A great hands-on math lesson!

Topped with roasted pumpkin, prosciutto, herbs, and feta, these pita pizzas are a healthy, seasonal alternative to your classic pie.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

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

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.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

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.