Prepare for some scary Halloween counting practice! This game encourages players to knock down cylinders and then add to determine their scores.

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

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!

Playing a tactile game with multiplication will help your child get a better grasp of basic math concepts and transform your kid into a master multiplier.

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

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

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.

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.

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

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

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

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

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!

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

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

This fun math card game is a great opportunity to discuss probability with your third grader.

Hone observational skills and introduce the basics of data interpretation with this data gathering activity all about the different colors people wear.

Your child will be cheering for 8s and 9s as she tries to create a larger number than her competitors. Whoever ends up with the largest number wins!

In this matching activity, your kid will match the clock faces representing analog time with the numeric readings representing digital time.

Calling all power-shoppers! This game is a fun way for kids to learn life skills, and flex their math muscles at the same time.

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.

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

Probability can be a tough concept to master. Try playing this fun card game in order to help your third grader understand it a little better.

Here's a super fun game to get in some place value practice with your child!

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

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

Use a deck of playing cards to practice place value and other math concepts with your upper elementary child!

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

This activity is a great starting point for practicing mental math because it is quick, easy and involves only simple addition facts.