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100

A galaxy contains stars, gas, and dust. This matter must be held together or the galaxy will break apart. What is responsible for holding the stars, gas, and dust together in a galaxy?

Gravitational

Gravitational Pull

Gravity

100

What event marked the beginning of the universe?

  • A) The birth of stars
  • B) The Big Bang explosion
  • C) The formation of planets
  • D) The creation of galaxies

 

B) The Big Bang explosion

100

What causes the phases of the Moon? 

  • A) The Moon's orbit around the Earth and how much of its surface is lit by the Sun.
  • B) The Moon's size changes during its orbit.
  • C) The Earth’s rotation blocks sunlight from the Moon.
  • D) The Sun changes its position in the sky.

A) The Moon's orbit around the Earth and how much of its surface is lit by the Sun.

100

What is the phase of the Moon when it is fully illuminated from Earth’s point of view? 

  • A) New Moon
  • B) Full Moon
  • C) Waxing Gibbous
  • D) Waning Crescent

B) Full Moon

100

Which planet is the largest in our solar system?

Jupiter

200

Which of the following correctly lists the objects of space in order from largest to smallest?

  • A) Star, planet, galaxy, moon.
  • B) Galaxy, star, planet, moon.
  • C) Planet, star, moon, galaxy.
  • D) Moon, planet, star, galaxy.

 

B) 

Galaxy, star, planet, moon.

200

What is used to measure the distance between celestial bodies?

  • A) Kilometer
  • B) Light-year
  • C) Meter
  • D) Mile

 

B) Light-year

200

Which season occurs when the Earth's northern hemisphere is tilted toward the Sun? 

  • A) Winter
  • B) Summer
  • C) Fall
  • D) Spring

B) Summer

200

What is the name of the phase when the Moon is between the Earth and the Sun, and we cannot see it? 

  • A) New Moon
  • B) Waxing Crescent
  • C) Full Moon
  • D) Waning Gibbous

A) New Moon

200

Which planet is the hottest in our solar system?

Venus

300

The sun is the center of our solar system. Which statement accurately describes the sun?

  • A) The Sun is a planet.
  • B) The Sun is a moon.
  • C) The Sun is a star.
  • D) The Sun is a galaxy.

 

C) The Sun is a star.

300

What is a comet made of?

  • A) Dust and gas
  • B) Ice and dust particles with a tail of gases
  • C) Rocks and ice
  • D) Only ice

 

B) Ice and dust particles with a tail of gases

300

During which season is the northern hemisphere tilted away from the Sun? 

  • A) Winter
  • B) Spring
  • C) Fall
  • D) Summer

A) Winter

300

What happens during the waning phases of the Moon? 

  • A) The amount of sunlight reflecting off the Moon increases.
  • B) The amount of sunlight reflecting off the Moon decreases.
  • C) The Moon stops orbiting the Earth.
  • D) The Moon gets brighter in the sky.

B) The amount of sunlight reflecting off the Moon decreases.

400

Sometimes the moon looks like a crescent. At other times, the moon looks like a half circle. Which reasoning explains what makes it possible for you to see the surface of the moon from Earth? 

  • A) The moon reflects the sunlight that hits it.
  • B) The moon is always visible, even when it is dark.
  • C) The sun shines directly on the moon at all times.
  • D) The moon glows on its own, producing its own light.

A) The moon reflects the sunlight that hits it.

400

What causes ocean tides on Earth?

  • A) The Earth's rotation
  • B) The Sun’s gravity
  • C) The Moon’s gravity
  • D) Wind currents

 

C) The Moon’s gravity

400

What causes the phases of the Moon? 

  • A) The Moon’s rotation around Earth
  • B) The Earth’s shadow on the Moon
  • C) The Sun’s light reflecting off the Moon
  • D) The Moon’s position relative to the Sun and Earth

D) The Moon’s position relative to the Sun and Earth

400

Which planet is known as the "Red Planet"?

Mars

500

What is the study of the universe called?

  • A) Astronomy
  • B) Cosmology
  • C) Geology
  • D) Biology

 

B) Cosmology

500

Why does the Moon appear to be the same size as the Sun?

  • A) The Moon is the same size as the Sun.
  • B) The Moon is closer to Earth, making it appear the same size as the Sun.
  • C) The Sun is smaller than the Moon.
  • D) The Moon is farther from Earth than the Sun.

 

B) The Moon is closer to Earth, making it appear the same size as the Sun.

500

When the Moon appears to be a half-circle in the sky, what phase is it in? 

  • A) Full Moon
  • B) First Quarter/Half Moon
  • C) New Moon
  • D) Waxing Crescent
  • B) First Quarter/Half Moon
500

Which planet is closest to the Sun?

Mercury