Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Get ready to make a dollar...using playing cards! The first player to accumulate the amount of points equal to a dollar wins.

This fun activity encourages your child to develop their skills in not only taking measurements, but also in working with the measurements themselves.

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

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.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Here's a fun, geometric puzzle activity that will capture your child's interest and strengthen his number awareness and graphing skills.

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

Liven up a lesson about graphing by helping your third grader compile a bar graph from his classmates' birthday data.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

In this activity, your child will get a review of addition, subtraction, multiplication and division using classic domino pieces.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Exponents can be tricky to learn. Fortunately this game provides plenty of multiplication practice for your math student!

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

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

Learn to recognize symmetry by playing this game! The more you play, the better you'll get at recognizing this special characteristic many playing cards have.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

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

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

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.

Toss playing cards into boxes while you practice addition and multiplication with decimals in this fun, fifth grade math game.

Have your child observe, measure and record the amount of space objects occupy, and you'll have an inside space explorer on your hands in no time!

Competitors go head-to-head only this time it's a race to figure out the lowest common multiple of two numbers; an important step to working with fractions!

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

Here's an interactive, fast-paced game that will make your fifth grader feel more comfortable with simple equations.

This activity will help your child tackle those tricky fraction word problems by way of a hands-on method.

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

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

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?