This science fair project idea determines whether land or water warms more quickly and investigates how solar radiation increases the temperature of surfaces.

Play tic-tac-toe and help your kid memorize multiplication facts!

This science project challenges students to take learned information about weather and climate control and apply it to come up with creative ideas of their own.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

This fun outdoor game will help your child develop her addition and subtraction skills and teach her basic arithmetic while keeping her active.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Create equations in this strategic math card game. Your second or third grader can practice addition, subtraction, multiplication, and division in a new way!

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

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.

Try a new approach to working with variables and equations by playing this tic-tac-toe game with your math student.

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.

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!

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

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

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!

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.

Learn how to count in Spanish. Your child will practice her numbers and build her reading skills while learning a bit about Latino culture along the way.

Create a fun hands-on game to practice long division, using magnetic numbers on a fridge.

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

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.

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.

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.

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