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Eighth Grade (Grade 8) Astronomy Questions

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Grade 8 The Moon
The Moon revolves around Earth about once every
  1. 27.3 days.
  2. 7 days.
  3. 365 days.
  4. 24 hours.
Grade 8 Stars
A huge cloud of gas and dust from which new stars and galaxies form is called
  1. a pulsar.
  2. a nova.
  3. a nebula.
  4. the universe.
Grade 8 Universe
What unit of measurement is approximately equal to the distance between the Sun and Earth?
  1. astronomical unit
  2. light-year
  3. parsec
  4. arc second
Grade 8 Planetary Motion
What causes the apparent movement of the Sun across the sky during the day on Earth?
  1. revolution of Earth in its orbit
  2. rotation of Earth on its axis
  3. location of Earth in space
  4. objects are moving around Earth
Grade 8 Solar System
Our solar system formed about
  1. 13.7 billion years ago.
  2. 4.6 billion years ago.
  3. 100 million years ago.
  4. 100 billion years ago.
Grade 8 The Moon
Flat lowland areas on the Moon are                .
  1. craters
  2. volcanoes
  3. highlands
  4. maria
Grade 8 Inner Planets
Earth is the only planet in the solar system that has
  1. clouds.
  2. a solid core.
  3. oceans of liquid water.
  4. a thick atmosphere.
Grade 8 Stars
A pulsar is                                .
  1. a dead star
  2. a new-born star
  3. a rapidly spinning neutron star
  4. a rapidly spinning white dwarf
Grade 8 The Moon
What is the Moon called when light fully illuminates the whole side facing Earth?
  1. Full moon
  2. New moon
  3. Third quarter
  4. Waxing gibbous
Grade 8 The Moon
Which of the following is true about the Moon?
  1. It has no gravity at all.
  2. It has a constant surface temperature.
  3. It has an extremely thin atmosphere.
  4. It has liquid water.
Grade 8 Planetary Motion
Earth's axis is tilted with respect to Earth's orbit at an angle of
  1. 90 degrees.
  2. 45 degrees.
  3. 23.4 degrees.
  4. 5.5 degrees.
Grade 8 Planetary Motion
The spin of Earth is known as
  1. revolution.
  2. rotation.
  3. evolution.
  4. seasonal.
Grade 8 Sun
Where does the nuclear fusion process occur?
  1. the core
  2. the radiation zone
  3. the convection zone
  4. the Sun's atmosphere
Grade 8 Universe
A light year is a measurement of
  1. time.
  2. distance.
  3. temperature.
  4. star brightness.
Grade 8 The Moon
What results when the Moon is in Earth's umbra?
  1. a total solar eclipse
  2. a total lunar eclipse
  3. a partial solar eclipse
  4. a partial lunar eclipse
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