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

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

Work on measurement by sliding cards along a table with your second grader in this fun game. Use centimeters or inches, add up your totals, and see who's won!

Help your child practice her counting as she makes this fun and festive holiday decoration!

This fun activity encourages your child to develop their skills in not only taking measurements, but also in working with the measurements themselves.

Make a bear cave for your child to play and explore, learning about bears and winter hibernation.

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

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

Forget the measuring stick! This fun math activity uses a body part, your child's hand, as a ruler.

This pumpkin dessert recipe tastes like pie but looks like a no-bake cookie.

This do-it-anywhere guessing game helps reinforce number concepts. And it's a blast to play.

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

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.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

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

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Help your curious kid cut through the clutter and collect the facts with a simple and fun science foldable.

Got a kid who loves fashion? Help her develop her own unique style with this tie-dye project using natural dyes.

Here's a place mat your second grader can create, based on the classic frontier tradition of patchwork quilting.

This science fair project idea determines effective strategies to help students stay awake and attentive.

Countries all around the world have been using the abacus for thousands of years to make math easier. Have your kid make his own abacus to practice arithmetic.

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

Making candles from old candles is easy. Recycle old candle stubs to make a "new" candle, and teach your child about recycling at the same time!

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.