Want to ensure that your child's math knowledge stays sharp? This mean, median, and mode game is the perfect way to reinforce these essential math concepts.

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

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

Let your preschooler create something cute while making something delicious to eat: create bread sculptures, or shapes of bread dough!

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

This experiment will explore the best way to create a perfect soft-boiled egg.

Determine how effective animal camouflage is by simulating it in an indoor and outdoor setting.

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

Help your child see numbers three ways with this simple grab-and-go game, great for quick practice in the car.

Trying to find sums of groups of multiples is a great way to practice your addition. Be sure to double check your work. If you clear all of the cards, you win!

Play with shapes, like triangles and circles, to help your child review the different kinds and create a new picture!

Combine art, history and food with this unique project! Your child will make her own butters, and learn a little about Colonial history at the same time

Help your child practice multiplication tables with this mental and physical multitasking game that uses a hula hoop to get into the swing of things.

Making candles from old candles is easy. Recycle old candle stubs to make a "new" candle, and teach your child about recycling at the same time!

Here's a hands-on way to help your child understand how common fractions can be equivalent.

Think you need a special dehydrator to make your own fruit leather? You can actually make a delicious version of this popular kid's snack in your own oven.

In kindergarten, your child spent lots of time counting things one by one. But in first grade, he'll need to be able to count in groups, especially by fives.

Any decent Halloween celebration isn't complete without a cat. Even though this cat has an arched back to look as if it's hissing, it's still cute!

Your child will practice her counting and number recognition as she matches printed numbers to the same number of repetitions of a simple design.

Check out this simple version of a pairs game that's played all over the world. It's a great way to practice estimating and predicting mathematical outcomes.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

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.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

Put your kid in charge of her own survey! She'll poll her relatives and friends, collect information, and then create a colorful chart to display her findings.

Play Number Dash with your preschooler and help them learn to identify numbers, write numbers and learn about organized play.

Practice counting, sequencing, and pattern recognition with your young learner in this fun math card game!

Help your child make an imaginative, inexpensive spaceship from recycled materials. When the spaceship is ready, count backwards from ten and then BLAST-OFF!

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

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

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)