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Ninth Grade (Grade 9) Astronomy Questions

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Grade 9 Outer Planets
What is the name of the region beyond Neptune's orbit where icy bodies lie?
  1. The Kuiper Belt
  2. The Oort Cloud
  3. The Outer Asteroid Belt
  4. All of the Above
Grade 9 Stars
Grade 9 Stars

This question is a part of a group with common instructions. View group »

The process in which smaller atomic nuclei combine into large atomic nuclei is known as
  1. gravitational attraction.
  2. parallax.
  3. nuclear fusion.
  4. the Doppler effect.
Grade 9 The Moon
Grade 9 Stars
Which area of Earth Science includes the study of stars?
  1. meteorology
  2. hydrology
  3. geology
  4. astronomy
Grade 9 Planetary Motion
How long does it take Earth to complete one revolution?
  1. 29.5 days
  2. 365.25 days
  3. 24 hours
  4. 72 hours
Grade 9 The Moon
A lunar eclipse can only occur during which phase of the Moon?
  1. Quarter Moon
  2. New Moon
  3. Full Moon
  4. Crescent Moon
Grade 9 Planetary Motion
The Moon moves in a line directly between Earth and the Sun, casting a shadow on Earth.
  1. Solar Eclipse
  2. Lunar Eclipse
  3. Winter Solstice
  4. Earth Eclipse
Grade 9 Universe
Grade 9 Planetary Motion
Grade 9 Outer Planets
Io is a moon of                .
  1. Mars
  2. Venus
  3. Jupiter
  4. Earth's Moon
Grade 9 Inner Planets
Grade 9 Universe
The Milky Way galaxy is a(n)                     .
  1. spiral galaxy
  2. elliptical galaxy
  3. irregular galaxy
  4. barred spiral galaxy
Grade 9 Planetary Motion
What is an eclipse of the Moon, when the Moon passes through Earth’s shadow.
  1. Solar Eclipse
  2. Lunar Eclipse
  3. Summer Solstice
  4. Earth Eclipse
Grade 9 Universe
What were the first elements made after the Big Bang?
  1. Hydrogen & Helium
  2. Hydrogen & Lithium
  3. Helium & Oxygen
  4. Helium & Argon
Grade 9 Planetary Motion
The gravitational attraction between Sun, Moon, and Earth
  1. causes tides.
  2. causes seasons to change.
  3. causes a full moon.
Grade 9 Small Bodies and Dwarf Planets
How are asteroids formed?
  1. They were formed when the solar system was formed.
  2. The planets' gravity pull them in and they start orbiting the sun.
  3. They are smaller portions of meteorites.
  4. They are smaller portions of comets.
Grade 9 Planetary Motion
The force that holds planets in their orbits is called
  1. parallax.
  2. revolution.
  3. rotation.
  4. gravity.
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