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.

Use familiar household items and decorations to turn estimation into a fun game!

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.

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

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!

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

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.

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

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

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!

How much does 100 weigh? Play this fun guessing game with your child to commemorate the 100th day of school.

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.

This fun activity encourages your child to develop their skills in not only taking measurements, but also in working with the measurements themselves.

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

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.

Introduce your fourth or fifth grader to volume by having him build rectangular prisms, and then count each sugar cube to check his volume calculations.

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.