Earth Science Instructional Guide

Earth and Space Science

Stars

Quarter 1

McGraw Hill Module 23

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.

Complete the QuickLab: Model Parallax

Elaborate

645

10Min

Apply Earth Science: Radar Detection

Students might be interested to know that police make use of the Doppler effect in timing the speed of cars.

Evaluate

642

10Miin,

Partner students and pose the question “How do we know anything about stars that are hundreds of light-years away?” Give students the opportunity to talk to their partner about the answer to the question in a think-pair-share. Once students have had time to think and share, call on students to share what they discussed together in their groups confrm correct comments and correct any misunderstandings.

Allow students time to answer the Focus