Science Education Standards: Earth and Space Science -- Content Standard D: Earth in the Solar System

• The Earth is the third planet from the sun in a system that includes the Moon, the sun, seven other planets and their moons, and smaller objects, such as asteroids and comets. The sun, an average star, is the central and largest body in the solar system.

Short Description: This activity encourages a discussion about what makes a planet habitable. Students match a series of questions with corresponding correct answers and keep track of planet characteristics in a simple table. They interpret the table to answer the basic question, "What makes a planet habitable?"