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Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

This St. Patrick's day, stretch your third grader's social studies and math skills with this fun, cooperative learning game.

Give your second grader a chance to get his feet wet with measurement before he moves onto the more complicated stuff by trying this activity with him at home.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

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

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

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

Play this game to help froggie hop home...and teach the number line to your kindergartener while you're at it!

Have your kid practice completing number patterns and then create her own patterns on the wings of a butterfly with this delightfully simple paper project.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Get a leg up on counting concepts with this project where art and math collide.

Want to help your kid with math? Get out the grab bag! This game is a great way to practice the tricky business of associating numbers with sets of objects.

In this matching activity, your kid will match the clock faces representing analog time with the numeric readings representing digital time.

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

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

This game provides your child with the opportunity to create, write, and read numbers.

This competitive inequalities card game is a great way to help your child understand the connection between numerals and the values they represent.

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

Regale your kindergartener with the beloved story of Rudolph, and then segue into a Christmas craft project in which he makes his own reindeer creation!

Explore the math concept of probability with your fifth grader on "lucky" St. Patrick's day this year!

Challenge your third-grader to sharpen her new math skills--and maybe do the planet a favor, too.

Tackle both boredom and mathematics with this inventive arts and craft project!

Strengthen your child's number recognition skills with this fun game using an old, empty egg carton!

Do a little kitchen chemistry as you make your own bubble solution and bubble-wand shapes!

Get ready to make a dollar...using playing cards! The first player to accumulate the amount of points equal to a dollar wins.

Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.

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 idea investigates food preference of birds.