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.

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

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

If you're looking for a fun way to have your child gain practice pattern-making while working out fine motor skills, making Washi eggs is the perfect activity.

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!

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

This hands-on activity gives your child an opportunity to apply various strategies to solve a problem and to check if his answer makes sense.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

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

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

This project examines the affect of temperature on viscosity and surface tension of different liquids.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

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

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

Add these fun chocolate Groundhog Day cupcakes to your holiday desert recipe repertoire! They're fun to make with your kids and a delicious winter snack.

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.

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.