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Sixth Grade (Grade 6) Science Questions

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Grade 6 Astronomy
Why can't you hear in space?
  1. it's too loud
  2. the Sun is too bright
  3. there is no atmosphere
  4. comets
Grade 6 Waves and Sound
As the frequency of a sound wave increases, the wavelength                .
  1. decreases
  2. stays the same
  3. increases
  4. fluctuates
Grade 6 Historical Geology
Name the three sources of evidence that Wegener used to support his theory of continental drift.
  1. core, mantle, crust
  2. sun, heat, water
  3. mantle, water, animals
  4. landforms, fossils, climate
Grade 6 Acids and Bases
                is an acid.
  1. Baking soda
  2. Lemon juice
Grade 6 Universe
Choose the FALSE statement about the Milky Way Galaxy.
  1. It is a barred spiral galaxy.
  2. It is billions of years old.
  3. It contains billions of stars.
  4. It is actually a cluster of galaxies.
Grade 6 Simple Machines
What is a compound machine?
Grade 6 Forces and Motion
Which is the best reference point for describing the motion of the planets in our solar system?
  1. the Sun
  2. a space ship in orbit
  3. the Milky Way
  4. Earth
Grade 6 Forces and Motion
Which of the following is NOT an example of acceleration?
  1. a person jogging at 3 meters per second along a winding path
  2. a car stopping a stop sign
  3. a cheetah running 27 meters per second east
  4. a plane taking off
Grade 6 Periodic Table and Elements
The atomic                 of an atom is based on the number of protons in the nucleus.
  1. mass
  2. group
  3. shell
  4. period
  5. atom
  6. element
  7. number
Grade 6 Matter
A gas
  1. has a definite volume and shape.
  2. can flow into the shape of its container and has a definite volume.
  3. has no definite volume and fills the entire space.
Grade 6 Communities, Populations, and Ecosystems
Define the term ecosystem.
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