Here's a simple math activity that has your child using her basic addition facts to solve a secret code.

Build this game, and give your kid some hands-on practice ordering numbers. Soon your first grade kid will be Master of the number line!

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

This project compares different liquids and the freezing, melting and boiling points of liquids.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

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

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

Find sums of 10 in this fun first-grade math card game that helps kids build addition skills. Help your child use critical thinking skills to find the sums.

This flannel board will give your child hands-on practice with math, but in a fun format, full of ladybugs.

For most second graders, a good secret code is just about irresistible. Here's one that builds math facts while you're at it!

Play this daily money game with your 2nd grade child to help his math skills.

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

This activity with add some fun and education to long car trips. Perfect for family vacations!

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

Determine whether the relationship between a personâs armspan and height are genetic.

Kids will get a kick out of shopping for discounted "kicks" with this creative math game that focuses on percentages.

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

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

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

Make a big green alligator with household items and help your kindergartener practices letters and sounds!

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

It's important to be able to add and subtract quickly and accurately, and this activity is the perfect way to practice.

Play this "subtraction war" card game with your second grader and watch his math facts mastery leap forward!

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Your child can count out six pumpkins or six crayons, but what is a six all by itself? ThatÃs a much harder concept to grasp.

Celebrate the 100th day of school by creating a geometric, math-inspired mural in the style of Henri Matisse in this creative kindergarten grade art activity.