26 The Universe

Chapter 26: Stars and Galaxies

Labs

  1. Determining near star distances by triangulation.

  2. Determining relative star distances using parallax.

  3. Determining deep space star distances by other means.

Math Skills

    1. Telescope magnification (p. 820)

    2. Squares & Square roots

    3. Mass & Luminosity (p. 827)

    4. Percentages

Objectives

Sect 1: Observing the Universe

    1. Describe a constellation as a pattern of stars.

    2. Compare and contrast types of optical telescopes.

    3. Distinguish between a radio telescope and an optical one.

Sect 2: Evolution of Stars

    1. Explain how stars form.

    2. Classify the stages of stellar evolution by interpreting the Hertzsprung-Russel (H-R) diagram.

    3. Describe how the sun works and how it will evolve.

Sect 3: Galaxies & the Milky Way

    1. Explain that the same natural laws that apply in the Milky Way Galaxy also apply in other galaxies.

    2. Compare the three main types of galaxies.

    3. Describe the Milky Way galaxy and the Sun's position in it.

Sect 4: Cosmology

    1. Distinguish between the different theories about the origin of the universe.

    2. Define dark matter.

    3. Explain why scientists hypothesize the existence of dark energy.