Earth Science Instructional Guide

Earth and Space Science

Stars

Quarter 1

McGraw Hill Module 23

Stellar Spectral Lines

Review with students how Spectra helps us to identify properties of stars.

Complete the GeoLab: Identifying Stellar Spectral Lines or show students the second page of the lab and discuss how the lines in the spectra help us identify the elements in stars.

● Blank Paper or chromebook for students to create illustration

Evaluate

641

15Min

Formative Assessment Check pg. 641.

Phenomena Check In:

5Min

What did we learn today that might help us to understand how telescopes tell us what elements are in the stars?

● Chromebook to view the digital version, or printed paper version

Engage

Lesson2:

642

10Min.

Measuring the Stars

Focus Question: How do we know anything about stars that are hundreds of light-years away?

Launch the Lesson: Measuring the Stars

● String ● Tennis ball ● 9V battery & connector ● 9Vbuzzer ● Rubber bands/tape ● Meter stick ● 4meters string ● protractor

Explore and Explain

643

45Min.

Part 1: Discussion: Write the following statement on the board: Stellar Classifcation is based on measurement of light spectra, temperature and composition. Give some background knowledge about each from the text and specifcally teach students about star clusters and Binaries.