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

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.

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

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!

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

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!

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.

Practice conversions within the metric system in this fun math card game for third graders.

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!

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.

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

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

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

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

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.

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

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.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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.

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.

This little chick is so cute that your child will want to make a whole flock to call her own.

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?

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.

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

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?