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TEKS Grade 8 Science - 8.8 Diagnostic - Universe

Quiz by Texas Education Agency

Grade 8
Science (2017)
Texas Essential Knowledge and Skills (TEKS)

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Measures 4 skills from
Grade 8
Science (2017)
Texas Essential Knowledge and Skills (TEKS)

8.8a
8.8b
8.8c
8.8d

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10 questions
Show answers
  • Q1
    The Milky Way galaxy is described as a disk of stars orbiting a central point on the disk. Which of these best explains why people on Earth cannot see the entire shape of the Milky Way?
    The stars in the center of the galaxy are extremely small.
    Earth is a part of this galaxy
    The center of the galaxy consists of a dense cluster of stars.
    Many more stars exist outside the galaxy.
    30s
    8.8a
  • Q2
    The Hertzsprung-Russell diagram below shows how the brightness, surface temperature, and color of stars are related. Which of these observations of Barnard’s Star is most likely accurate?
    Question Image
    Barnard’s Star is brighter than the sun, has a surface temperature below 5,300 K, and is yellow.
    Barnard’s Star is less bright than the sun, has a surface temperature above 3,800 K, and is red.
    Barnard’s Star is brighter than the sun, has a surface temperature above 5,300 K, and is yellow.
    Barnard’s Star is less bright than the sun, has a surface temperature below 3,800 K, and is red.
    30s
    8.8a
  • Q3
    Why does Earth get more energy from the sun than from all the other stars in the universe combined?
    The sun is much more dense than the other stars.
    The sun is much hotter than the other stars.
    The sun is much larger than the other stars.
    The sun is much closer than the other stars
    30s
    8.8b
  • Q4
    Based on your knowledge of our solar system, which planet would take the least amount of time to orbit the star?
    Inner Planets
    None of these
    Outer Planets
    Dwarf planets
    30s
    8.8b
  • Q5
    Which statement about stars is correct?
    supergiants are stars that can absorb black holes
    white dwards become main-sequence stars when they gain mass
    Star formation begins in a nebula
    main-sequence stars are formed by comets
    30s
    8.8b
  • Q6
    Quasars are extremely distant celestial bodies. Investigators using a special telescope determined that a certain quasar was emitting waves with a frequency of 1 4. 1 × 109 Hz. An electromagnetic spectrum is shown. The investigators were most likely using a telescope that detects —
    Question Image
    gamma rays
    microwaves
    visible light
    x-rays
    30s
    8.8c
  • Q7
    What instrument collects electromagnetic radiation from objects and concentrates it?
    endoscope
    telescope
    stethoscope
    microscope
    30s
    8.8c
  • Q8
    The table lists the distances of some of the nearest stars. Based on the table, a student used a measuring tape to model the distances between the sun and these nearby stars. The sun was at the starting point. Proxima Centauri was at the 10 m mark. Which star was closest to the 20m mark in this model?
    Sirius A
    Wolf 359
    Barnard's Star
    Ross 248
    30s
    8.8d
  • Q9
    Which statement best describes evidence of the Big Bang Theory?
    Galaxies throughout the universe moved toward each other after an event that occurred about 13.7 billion years ago
    Most objects in the universe are moving away from each other as a result of an event that occurred about 13.7 billion years ago.
    Galaxies within the universe collided about 13.7 billion years ago forming the present objects in the universe
    Existing objects in the universe moved randomly with the potential of colliding in about 13.7 billion years
    30s
    8.8d
  • Q10
    Why is the BIg Bang Theory considered the most scientific accepted theory?
    All other theories are right too
    It is the origin story of the Universe with the most evidence
    It led to the immediate creation of early life forms such as humans
    It created Science and data
    30s
    8.8d

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