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

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

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

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

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

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

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.

How powerful is the reaction between baking soda and vinegar? Find out here!

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?

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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

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

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Make this delicious warm apple bread for Hanukkah.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Make this easy recipe for Halloween, featuring white chocolate and pretzels, for a crispy, creepy treat!

Making decorative pottery is a great way to experiment with making patterns and texture on a traditionally smooth surface.

These delicious Easter Basket Cupcakes are a simple, creative holiday treat. These cupcakes sit in waffle bowls with festive coconut grass and jellybean eggs.

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.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

Hiding protein-rich quinoa and a variety of fresh vegetables, these meatballs are the perfect answer to kid food woes.

Time is an abstract concept that's difficult to grasp. But waiting for the turkey to come out of the oven on Thanksgiving is a concretely yummy experience.

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

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

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

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

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