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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?

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.

Help your child apply his math skills the next time you cook a family meal similar to one you'd buy at a restaurant.

Engage your third-grader in this version of the classic game and she will get lots of practice using mental math to solve addition and subtraction problems.

Make math fun and easy with this activity that challenges your child to use their addition and multiplication skills to win a race!

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.

This fun geometry game requires players to use measurement, find perimeter, and draw polygons. It's great for a fourth grade math student!

Your kindergartener will learn basic math concepts and create a beautiful keepsake with this African flag reference book.

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.

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.

Practice multiplication facts and geography at the same time in this fun third grade math card game.

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.

Math Facts Game: A mix of musical chairs and Twister meets math. Nipping multiplication problems in the bud was never this much fun!

Try this fun math card game with your third grader to practice division, addition, and problem solving!

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!

Most parents probably wouldn't mind subtracting 8-9 years off their age. Here's a fun third grade subtraction activity that may do just that.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

This is a great game to help your child learn number concepts in multiplication and division.

Sharing can be a challenge, and division doubly so! Practice halving numbers in this competitive card game.

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

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 footwear-focused activity introduces fractions as part of a set and it's the perfect way to generate excitement about fraction concepts.

Help your child improve his coin counting skills in these two math games that have him race to reach $1.00.

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

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

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

Find the area in this fun math card game. You'll help your child start thinking in terms of units as you create shapes out of playing cards.

Help your second grader to a better understanding of how to count and represent money with age old game of tic-tac-toe.

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!