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TEK 8.8ABCD

Quiz by Jennifer Davis

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

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Measures 3 skills from
Grade 8
Science (2017)
Texas Essential Knowledge and Skills (TEKS)

8.8a
8.8b
8.8c

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12 questions
Show answers
  • Q1

    The Hertzsprung-Russell diagram shown is divided into four sections. Which section of the diagram includes the coolest, brightest stars?

    Question Image

    Section 4

    Section 1

    Section 3

    Section 2

    120s
    8.8a
  • Q2

    The spectral classes of four stars are shown in comparison with an HR diagram. Based on the information, which star is most like the sun?

    Question Image

    Star 1

    Star 4

    Star 2

    Star 3

    120s
    8.8a
  • Q3

    Which statement is true about stars?

    White dwarfs become main sequence stars when they gain mass.

    Main-sequence stars are formed by comets.

    Star formation begins in the nebula.

    Supergiants are stars that can absorb black holes.

    120s
    8.8a
  • Q4

    Which statement best describes a galaxy?

    a system of billions of stars, gas and dust held together by gravity

    a mass of dust and ice that orbits a star in an elliptical pattern

    a ball of plasma that experiences nuclear fusion in its core

    a cloud of gas that is the birthplace of stars

    120s
    8.8a
  • Q5

    Most stars in the universe fit into one of the four areas on the HR Diagram. Which area of the diagram represents white dwarfs?

    Question Image

    area p

    area z

    area x

    area m

    120s
    8.8a
  • Q6

    Barnard's Star is about 5.9 light years from the sun. The star has an approximate temperature of 2800 K. Based on the diagram, what spectral class does Barnard's Star belong too?

    Question Image

    Spectral Class A

    Spectral Class B

    Spectral Class M

    Spectral Class O

    120s
    8.8a
  • Q7

    The universe has many different components. Which list places four components of the universe in the most likely order from smallest to largest?

    moon, planet, star, nebula, galaxy

    galaxy, nebula, star, planet, moon

    nebula, moon, star, planet, galaxy

    moon, star, planet, galaxy, nebula

    120s
    8.8a
  • Q8

    A student learns that the sun is classifies as a medium size star and that many stars are much bigger and brighter. However, the student observes that the other stars look very dim, even through a telescope.  Why do other stars look much dimmer than the sun?

    the sun appears yellow, which is more visible than other colors

    as light from other stars travel through space, it gets reflected

    other stars are made up of different gases than the sun is.

    the sun is much closer to the Earth than the other stars

    120s
    8.8b
  • Q9

    With the use of the Hubble Space Telescope, scientists recently discovered a giant runaway star. It is 90 times larger than the sun and is very hot and blue-white in color. Why does the sun appear brighter than this runaway star when viewed from Earth?

    the sun is made up of different elements than the runaway star

    the sun is a different color than the runaway star

    the sun is older than the runaway star

    the sun is closer to the Earth than the runaway star

    120s
    8.8b
  • Q10

    The temperature of a star determines the wavelength of visible light that is produced. The visible part of the electromagnetic spectrum is shown. Stars with the highest temperatures will emit most of their light at wavelengths that are near -

    Question Image

    orange light

    red light

    green light

    blue light

    120s
    8.8c
  • Q11

    A diagram of the electromagnetic spectrum is shown. Earth's atmosphere blocks short wavelengths of the EM spectrum. Which telescopes must be placed in orbit around the Earth in order to observe short wavelength radiation

    Question Image

    radio telescopes

    infrared telescopes

    gamma ray telescopes

    visible light telescopes

    120s
    8.8c
  • Q12

    Quasars are extremely distant celestial bodies. Investigators using a special telescope determines that a certain quasar was emitting waves with a frequency of 1.41 x 10Hz. An electromagnetic spectrum is shown. The investigators were most likely using a telescope that detects -    

    Question Image

    xrays

    microwaves

    gamma rays

    visible light

    120s
    8.8c

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