Mapping Channels and Craters on Mars Mapping Channels and Craters on Mars Background Scientists use maps to illustrate the geologic history of a planet or moon.
Geologic maps show present day features and evidence of past events.
On Earth these maps are made using photographs taken from airplanes and spacecraft, and from research on the Earth's surface. To make maps of other planets we must use photographs taken by spacecraft and use lander information from the planet's surface. Objective Students will make a simple features map and interpret the geologic history of a part of Mars surface. Tracing paper or transparencies, one per paper photo. Tape or paper clips.