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.

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!

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.

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 deals with the qualities of shade on a sunny day.

This entertaining magic trick will 'trick' kids into using math skill to impress their friends!

This science fair project idea identifies clouds as a means of predicting the weather.

Play multiplication war, a fun card game, with your child and before long those annoying multiplication facts will be part of her mathematical skill set.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

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

Multiplication facts are a necessary skill, and this board game provides a fun way for your third grader to practice them!

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

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

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