Searching for Signs of Life on Mars

This resource is set in the context of soil tests in a Martian environment. Students begin by researching suitable criteria for defining the presence of life. They analyse soil samples in tests similar to the experiments on the Mars Viking Lander and use their operational definition of life to determine whether there are any signs of life in three different soil samples. Teams make observations, they draw pictures as they collect data from the samples, and draw conclusions.

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