You are hereHome ›
In this two-part investigation, students explore the concept of transits. In the first part, they discover that a transit is an event where one body crosses in front of another, like when a planet goes in front of a star. In the second part, students investigate how a planet's size and orbit affect the transit and then learn how to interpret transit graphs. Extension activities, an explanation of the mathematics used in the activity, background information, real data from NASA missions, and an answer key are included.