BHS Earth Science Guide

Stars

Earth Science

Quarter 1

McGraw Hill Module 23

Formative Assessment Check pg. 641.

for students to create illustration

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. Part 2: Have students read and annotate Doppler shifts from pg. 645. Doppler Effect Demonstration https://www.exploratorium.edu/snacks/do ppler-effect Part 3: Use the Interactive content: Properties of the Stars & Stellar Position and Distance. If technology is unavailable, use pages 645 - 651 from the book.