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

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.

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

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

Play tic-tac-toe and help your kid memorize multiplication facts!

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.

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.

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

Practice multiplication facts by playing baseball in this fun, third grade math board game.

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

Most timeline activities are all about history. Make timelines more relevant and personal for your child by focusing on the hours and minutes of his day.

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.

This pyramid card game is a fun way to help your child learn addition and subtraction. Best of all, itâs quick to set up and easy to play.

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.

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

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.

This heart print makes the perfect simple and sweet gift for Valentine's Day!

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.

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

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

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

With this fun craft activity, your child can design and "make" his own money, for use as currency and math practice at home.

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?

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

Practice of math facts is usually limited to drill sheets and flashcards. But kids are more likely to tune in to math facts if practice is presented as a game!

Here's a math activity that uses coin riddles to help your third-grader improve his coin-counting and logical thinking skills.

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!

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!