Practice Quiz

NAEP Science Grade 12 - Question List

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11. Which particle is a negatively charged ion?
  1. Hydrogen (H) with 1 proton, 0 neutrons, and 1 electron
  2. Sodium (Na) with 11 protons, 12 neutrons, and 10 electrons
  3. Chlorine (Cl) with 17 protons, 18 neutrons, and 18 electrons
  4. Magnesium (Mg) with 12 protons, 12 neutrons, and 12 electrons
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12. Why does radioactive dating of meteorites give a more accurate age for Earth than radioactive dating of rocks at Earth's surface?
  1. Most rocks that first formed on Earth's surface have since undergone major geologic changes.
  2. Most rocks found on Earth's surface are older than most meteorites.
  3. Most meteorites contain minerals that are the same age as those found on Earth's surface.
  4. Most meteorites are made of the same type of iron that is found in Earth's core.
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13. What is a property of all galaxies?
  1. All galaxies have a spiral shape.
  2. All galaxies are the same size.
  3. All galaxies contain a large number of stars.
  4. All galaxies rotate around a central star.
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14. What is the main reason that water has the ability to dissolve many different substances?
  1. Water has a lower molecular mass than many substances.
  2. Water molecules attract ions and the charged parts of molecules.
  3. Water molecules are larger than the ions or molecules they dissolve.
  4. Water is more dense in the liquid phase than in the solid phase.
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15. Coal, petroleum, and natural gas found underground in certain parts of Earth are primarily formed from which process?
  1. Decay of radioactive elements
  2. Collision of tectonic plates in earthquakes
  3. Transformation of dead plants and animals under heat and pressure
  4. Intrusion of water into the soil that breaks up rocks and minerals
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