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Eighth Grade (Grade 8) Matter Questions

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Grade 8 Matter
Grade 8 Matter
Grade 8 Matter
Sublimation is a change from a
  1. solid to a liquid.
  2. gas to a liquid.
  3. solid to a gas.
  4. liquid to a solid.
Grade 8 Matter
Grade 8 Matter
Grade 8 Matter
Liquids form into
  1. any shape.
  2. the shape of their container.
  3. no shape.
Grade 8 Matter
Select all of the following that qualify as physical changes.
  1. burning
  2. bending
  3. breaking
  4. dissolving
  5. crushing
  6. evaporating
  7. melting
  8. decaying
Grade 8 Matter
Select all of the following that qualify as chemical properties.
  1. Reactivity with water
  2. pH
  3. Flammability
  4. Rusting
  5. Creating gases
  6. Texture
  7. Color
  8. Creating a new chemical product
Grade 8 Matter
Which is true regarding the solid model?
  1. There are strong forces of attraction between the particles.
  2. The particles move around freely.
  3. There are great open spaces between the particles.
  4. The particles move great distances before they collide.
Grade 8 Matter
Solids have a crystal lattice because the particles
  1. vibrate around fixed positions.
  2. move in all directions.
  3. attract one another strongly.
  4. are not compressible at all.
Grade 8 Matter
Which of the following statements in incorrect? (more than one answer)
  1. Isobars possess the same chemical properties.
  2. Isotopes occupy the same position on the Periodic Table.
  3. Isotopes possess the same atomic number.
  4. In isobars, the total number of protons and neutrons in the nucleus in same.
Grade 8 Matter
Which statement about the Law of Conservation of Mass is NOT true?
  1. The mass of reactants must equal the mass of products.
  2. All the atoms on the reactants side of an equation are also on the products side.
  3. The reaction creates new types of atoms.
  4. Atoms are not lost, but are rearranged.
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