This hands-on activity practices skip counting, a key first grade math skill. But it's silly fun!

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.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

This science fair project idea tests the effect of heat- at varying temperatures- on the viability of biological enzymes.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

This measurement activity uses feet to compare objects, but not the ones found on rulers and measuring sticks...the feet on your child's own body!

Try this card game to build math fact skills, like addition and subtraction, and have a great time, too!

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

Help your little builder move up in the world with this recycled cardboard castle that's just the right size for a young king and his loyal stuffed subjects.

Counting with one-to-one correspondence is an important kindergarten math skill. This simple activity turns it into a play-anywhere game.

Learn about emulsification and bile's roles in digestion, and investigate how the digestive enzyme lipase breaks down lipids.

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

Teach your third grader about the concepts money and purchasing with this "Mock Card Shop" activity.

Sorting objects by size, color, shape, or function is an important concept in kindergarten math, and it's the perfect excuse for a little housekeeping!

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

This science fair project idea determines the way in which color affects memorization.

This science fair project idea deals with the qualities of shade on a sunny day.

Challenge your kindergartener to finding out if a coin toss is really fair by conducting this coin toss experiment.

This flexible activity for preschoolers features jellybeans, counting, coloring, and the five senses.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

This science fair project idea investigates food preference of birds.

This science fair project idea determines which flower lasts the longest.

This science fair project idea measures physical dexterity as a function of temperature.

Science fair project that creates fog using bottles of hot and cold water.

Science fair project that uses distillation to convert salt water into fresh water.

Science fair project that cultivates slime mold and monitors the stages of its development.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.

In this science fair project, students examine how temperature affects sugar transport within a plant.