BHS Secondary Science

Stars

Earth Science

Quarter 4

McGraw Hill Module 23

RESOURCES

PACING: 4 DAYS

● Module Launch: 45 min ● Lesson 1: 90 min ● Lesson 2: 90 min ● Lesson 3: 90 min ● Module Wrap-Up: 45 min

Module 23: Stars ● Phenomena: How do telescopes tell us what elements are in the stars? ● Lesson 1: The Sun ● Lesson 2: Measuring the Stars ● Lesson 3: Stellar Evolution

LEARNING PROGRESSIONS

STANDARD

ESS.1.1 ​ Develop a model ​ based on evidence to illustrate the life span of the Sun and the role of nuclear fusion releasing energy ​ in the Sun’s core. ​ Emphasize energy transfer mechanisms that allow energy from nuclear fusion to reach Earth. Examples of evidence for the model could include observations of the masses and lifetimes of other stars, or non-cyclic variations over centuries. (PS1.C, PS3.D, ESS1.A, ESS1.B)

● Most of the mass in the solar system is found in the Sun. ● Sun’s average density is approximately equal to that of the gas giant plants. ● The Sun has a layered atmosphere. ● The Sun’s magnetic field causes sunspots and other solar activity. ● The fusion of hydrogen into helium provides the Sun’s energy and composition. clusters held together by gravity. ● The simplest cluster is a binary. ● Brightness of stars is related to their temperature. ● Stars are classified by their spectra. ● Mass of a star determines its internal structure and its properties. ● Core temperatures that ● Most stars exist in

ESS 1.3 Develop a model to illustrate the ​ changes ​ in matter occurring in a star’s life cycle. ​ Emphasize that the way different elements are created varies as a function of the mass of a star and the stage of its lifetime.

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