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Science Questions - All Grades

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Grade 6 Environmental Science
Increase in human population impacts which of earth's spheres?
  1. biosphere only
  2. biosphere and hydrosphere only
  3. biosphere, hydrosphere, and atmosphere only
  4. biosphere, hydrosphere, atmosphere, and geosphere
Grade 6 Cell Structure and Function
The fact that all cells are produced from other cells is a part of
  1. cell theory
  2. plate tectonics
  3. continental drift
  4. scientific method
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 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 6 Forces and Motion
The change of velocity over time is
  1. speed
  2. distance
  3. acceleration
  4. time
Grade 4 Environmental Science
Which of the following is not an example of reduce, reuse, recycle?
  1. Using worn-out clothes for rags.
  2. Refilling plastic water bottles.
  3. Throwing old toys in the trash can.
  4. Taking aluminum cans to the school recycling center.
Grade 6 Environmental Science
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