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.

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

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.

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

Race to double numbers in this competitive card game. Try one-digit or two-digit numbers, or more!

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.

Try this recipe with your child and explore Ethiopia through one of its dietary staples: injera, or flat bread!

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

Getting kids to memorize their times tables can be worse than pulling teeth. Sweeten the deal with this activity that combines math and sugar.

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

Tackle both boredom and mathematics with this inventive arts and craft project!

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.

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.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

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

Delay your child's sugar overload, and develop his critical thinking skills, by doing some "sweet sorting" of his Halloween treasures!

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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.

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

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

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

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

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.

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.

Play this fun basketball game to help your third grader master their multiplication tables.

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

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

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