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 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.

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

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Introduce your child to science with something they see everyday--their shadow!

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 teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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

How many steps long is the hallway? Kids put their graph-making skills to work as they make a step map of their own house.

Encourage your kindergartener to investigate and chronicle the weather she observes during the coldest months of the year.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

This simple experiment serves as an introduction to the greenhouse effect.

This science fair project idea deals with the qualities of shade on a sunny day.

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

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

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 fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.