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

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

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!

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

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.

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

Make this delicious warm apple bread for Hanukkah.

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.

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

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.

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

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

Homemade Halloween treats make great party foods for an All Hallow's Eve get together. These four homemade Halloween treats are scary-good.

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

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

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

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.

Have your student draft a blueprint for a haunted house, and trick (or treat) them into learning about geometry in the process.

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.

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

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

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

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

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

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

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

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

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

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

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!