Begin the process of adding and subtracting spectra. Having a basic understanding of occultation events, pupils begin the pursuit to determine what a found atmosphere might contain. Learners work with two graphs and calculate what the result would be if the graphs are either added or subtracted. Background information provides a connection from the activity to subtracting spectra to determine the makeup of distant atmospheres.

Concepts

graphs, graphs interpreting, data, spectra

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Additional Tags

science

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Instructional Ideas

• Use two graphs on a coordinate plane to show the addition and subtraction of the graphs
• Ask classmates to create their own graph subtraction problems and share with others

Classroom Considerations

• Assumes the class has knowledge of occultation events

Pros

• Includes an answer document
• Provides a blackline master for the worksheet with room to draw the answer

Cons

• None