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Our Solar System (Grade 8)

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Our Solar System

The diagram below shows the alignment of the Sun, Moon, and Earth during a neap tide.
Spring Tide
  1. True
  2. False
Maddie must keep a moon journal for a homework assignment. Her sketches of how the Moon appeared on three different clear nights are shown. Based upon Maddie's drawings, it appears that the Moon is waxing.

Moon Phase - Full Moon Moon Phase - Waxing Crescent Moon Phase - Last Quarter
  1. True
  2. False
Which of the following is NOT a major difference between the inner and outer planets?
  1. Inner planets are close together, but outer planets are spread far apart.
  2. Inner planets are smaller and outer planets are bigger.
  3. Inner planets are made out of rock, but outer planets are made out of gas.
  4. Inner planets have moons, but the outer planets do not have moons.
Day and night are caused by Earth's                .
  1. tilt
  2. revolution
  3. moon
  4. rotation
About how much of the solar system's mass is in the Sun?
  1. 85.5%
  2. 99.8%
  3. 65.9%
  4. 95.7%
Locate Tycho on the map of the Moon. Tycho is most likely                     .
Map of the Moon
  1. a dried ocean
  2. an ancient crater
  3. an extinct volcano
  4. a weathered mountain
Why does Saturn's moon Titan interest scientists?
  1. Titan is similar to Earth's moon.
  2. Life has been discovered on Titan.
  3. It is the largest moon in the solar system.
  4. It seems to have a planet-like atmosphere.
What planet appears to be a blue-green due to the methane in its atmosphere?
  1. Uranus
  2. Mars
  3. Jupiter
  4. Saturn
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.
Jupiter's Great Red Spot is a giant                .
Planet Jupiter - Small
  1. storm
  2. crater
  3. ocean
  4. volcano
What is a loose collection of ice, dust, and small rocky particles, typically with a long, narrow orbit?
  1. comet
  2. asteroid
  3. meteor
  4. meteorite
Which one of the following is a terrestrial planet?
  1. Saturn
  2. Uranus
  3. Mars
  4. Jupiter
The asteroid belt is located between which two objects on the solar system diagram?
Solar System
  1. A and B
  2. C and D
  3. E and F
  4. H and I
                proposed the concept of a heliocentric system, in which planets revolve around the Sun.
  1. Kepler
  2. Copernicus
  3. Ptolemy
  4. Aristotle
Which of the following planets in our solar system takes the least time to orbit the Sun?
  1. Mars
  2. Earth
  3. Jupiter
  4. Mercury
Which planet is pictured?
Planet Saturn - Small
  1. Mars
  2. Jupiter
  3. Saturn
  4. Neptune
How many terrestrial planets are there?
  1. 5
  2. 6
  3. 4
  4. 3
All the                 revolve around the Sun in the same direction.
  1. stars
  2. comets
  3. planets
  4. galaxies
Which planet is the hottest?
  1. Venus
  2. Mars
  3. Mercury
  4. Uranus
The diagram shows the layers of                .
Diagram - Sun With Text Labels
  1. the Sun
  2. a comet
  3. Earth
  4. the Moon

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