Population I and Population II Stars


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question 1 of 3

Which population of stars would you expect to have formed when our galaxy was youngest?

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1. Low-mass stars live much longer than intermediate-mass or high-mass stars. Therefore, you would expect low mass stars in our galaxy to be:

2. Astronomers use stellar spectra to find out the chemical composition of a star's atmosphere. For a star like our sun, you would expect:

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About This Quiz & Worksheet

Though all stars look similar from far away, their compositions can be very different. This quiz/worksheet combo will ensure you understand the differences between population I and population II stars, including ages, composition, and formation.

Quiz & Worksheet Goals

In these assessments, you'll be tested on:

  • Which stars would have formed first
  • Whether population I or population II stars are more likely to be low mass
  • What our sun's spectra would show
  • The locations of population II stars
  • What atoms are heavier than helium
  • How nucleosynthesis can occur

Skills Practiced

This quiz and worksheet allow students to test the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related lesson on stars
  • Distinguishing differences - compare and contrast topics from the lesson, such as population I stars and population II stars
  • Knowledge application - use your knowledge to answer questions about stars

Additional Learning

To learn more about stars, review the lesson Population I and Population II Stars. This lesson covers the following objectives:

  • Explain metals and nucleosynthesis in astronomy
  • Discuss the effects that aging and supernovas have on stars
  • Differentiate between population I and population II stars