This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

Need help encouraging your preschool child to organize her toys? Start with this activity, and turn sorting and categorizing into a fun game.

Does your child need counting help? Here's a simple game that kids can do at home to help them practice counting to two-digit numbers.

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

Show your kindergartener how to count to 100 by tens, and he'll get an adorable cheerio necklace in the process!

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Bring the classic game of "Red Rover" up to date with color and shape recognition skills for your child.

In this fun math activity, second graders will learn to estimate items in a jar! 

Compare and order numbers and introduce mathematical inequalities in this fun math card game.

Your child can brush up on her math skills by charting the length of time that each candle on the menorah takes to burn.

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.

Play a game of "restaurant" to reinforce real-world applications of counting and using money.

Here's an enjoyable at-home activity that gives your child step-by-step practice identifying the important parts of an article and organizing his ideas.

Play this fun matching game with your kindergartener! It's a great way to practice math and number skills with playing cards.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

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.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

Lots of everyday objects can be fun, whether it's buttons, beans, or Lego blocks. Here's an activity that uses coins to build problem-solving strategies.

Help your child stay physically and mentally active with this group aerobic fitness game that's good for the heart and mind alike.

Simple and straightforward, this money math game helps kids practice counting, adding change, and working with decimals.

Forget the measuring stick! This fun math activity uses a body part, your child's hand, as a ruler.

Invite your first grader to play this subtraction sacks game to get her actively involved in understanding and memorizing subtraction facts.

Head out to the driveway, ball in hand, for a bouncing challenge. Then use those results to make a colorful graph that lets your child compare results.

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

Examine the connection between temperature and chemiluminescence.

Help your child develop his counting and language skills with this fun activity. He'll be a number hero for a day and learn about safety while he's at it.

This St. Patrick's day, stretch your child's social studies and math skills with this fun, cooperative learning game.

Your first grader will love telling time while playing this fun game of tag! Ask Captain Midnight for the time, but watch out when his watch says "midnight"!