Molecules and Substances Crossword

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Across
  1. 2. an individual particle of an element
  2. 6. on a scale that people can see with their eyes
  3. 7. the types of elements that make up a substance
  4. 12. a unique particle of matter that is a fundamental building block of matter
  5. 13. a property that describes how well one substance dissolves in another substance
Down
  1. 1. a limitation on the range of possible solutions to a design
  2. 3. a property that describes the mass of a certain volume of matter
  3. 4. a representation of an object which makes important aspects easier to see
  4. 5. matter that has a constant chemical composition and characteristics
  5. 8. a group of two or more atoms that are held together by chemical bonds
  6. 9. the requirements that must be met for an engineering solution to be successful
  7. 10. a characteristic of matter
  8. 11. the amount of matter in an object or sample