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Eighth Grade (Grade 8) Science Questions

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Grade 8 Atmosphere
Which is a cause of wind?
  1. a sunny weather pattern followed by a cloudy weather pattern
  2. an uneven heating of the atmosphere
  3. rainy weather
Grade 8 Periodic Table and Elements
The Periodic Table groups elements with similar properties together.
  1. True
  2. False
Grade 8 Cell Structure and Function
Which statement is not part of the cell theory?
  1. All living things are made up of one or more cells.
  2. Cells are the basic building blocks of all living things and make up their structure and function.
  3. News cell are made from existing cells.
  4. Cells are the smallest form of life.
Grade 8 Earth's Layers
Earthquakes, volcanoes, and other natural disasters occur because of the movement of the oceanic and continental plates. What causes these plates to move?
  1. the flow of the liquid metals in the outer core
  2. the flow of the hot material in the middle mantle that causes convection currents
  3. the breaking up of the crust
  4. the movement of the hot, solid metals in the inner core
Grade 8 Tectonics
What evidence is there for continental drift?
  1. similar fossils found on different continents
  2. similar rock structures found on different continents
  3. both of the above
  4. none of the above
Grade 8 Nervous and Endocrine Systems
What type of cell is shown?
Neuron
  1. bone
  2. nerve
  3. muscle
  4. reproductive
Grade 8 Reactions
In a reversible change matter
  1. cannot be changed back.
  2. can be changed back.
  3. is always liquid.
  4. does not exist.
Grade 8 Waves and Sound
Albert Einstein gave Gamma Rays their name.
  1. True
  2. False
Grade 8 Respiration, Digestion, and Excretion
What gland is responsible for forming insulin?
  1. thyroid gland
  2. pancreas
  3. pituitary gland
  4. adrenal gland
Grade 8 Tectonics
What kind of plate boundary occurs where two plates grind past each other without producing lithosphere?
  1. Convergent boundary
  2. Divergent boundary
  3. Transform fault boundary
  4. Seafloor spreading boundary
Grade 8 Biochemical Pathways
What is the most important purpose of photosynthesis in plants?
  1. to create oxygen
  2. to store energy in the form of glucose
  3. to break down glucose into carbon dioxide and water
  4. to create sunlight
Grade 8 Heat Transfer
What is molecular movement measured in degrees?
  1. pH
  2. salinity
  3. turbidity
  4. temperature
Grade 8 Forces and Motion
Which of the following exerts the strongest gravitational force on Earth?
  1. The other planets
  2. The stars
  3. The Sun
  4. The Moon
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