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Planetary Motion Questions - All Grades

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Grade 4 Planetary Motion
Grade 6 Planetary Motion
What is the correct alignment during a solar eclipse?
  1. Sun, Moon, Earth
  2. Sun, Earth, Moon
  3. Moon, Sun, Earth
Grade 7 Planetary Motion
Grade 5 Planetary Motion
This force keeps the planets in orbit.
  1. electrical energy
  2. nuclear force
  3. gravitational pull
  4. air resistance
Grade 5 Planetary Motion
This word means to spin on an axis.
  1. rotation
  2. revolution
  3. orbit
  4. gravity
Grade 2 Planetary Motion
Grade 5 Planetary Motion
One evening as it is getting dark, Alex sits on the front porch and watches the sun slowly disappear behind the neighbor's house across the street. Which explains this observation?
  1. The sun's light is reflected by the clouds.
  2. The sun's light is refracted by the atmosphere.
  3. The sun moves from west to east each day.
  4. The sun appears to move due to Earth's rotation.
Grade 4 Planetary Motion
Grade 7 Planetary Motion
An equinox occurs when
  1. neither hemisphere is tilted toward or away from the sun.
  2. the Northern Hemisphere is tilted away from the sun.
  3. the Northern Hemisphere is tilted toward the sun.
  4. Earth's axis is parallel to the sun's rays.
Grade 5 Planetary Motion
An oval shape, like a flat circle, is
  1. Meteor
  2. Universe
  3. Star
  4. Elliptical
Grade 5 Planetary Motion
The constellations seem to move as the seasons on Earth change. What causes this?
  1. Like the moon, the stars move around Earth.
  2. As Earth revolves around the sun, we have a different view of the stars.
  3. As the Earth rotates on its axis, we see different parts of the sky.
  4. Just as the seasons on Earth change, so do the seasons on stars.
Grade 5 Planetary Motion
Grade 7 Planetary Motion
The moon orbits the Earth at a slightly tilted angle compared to the Earth's orbit around the sun. This fact best accounts for which of the following?
  1. why there is a lunar eclipse every new moon
  2. why there is a solar eclipse every new moon
  3. why there is not a lunar eclipse every new moon
  4. why there is not a solar eclipse every new moon
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