Chemistry

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Across
  1. 2. Refers to the closeness of a set of measurement of the same quantity made in the same way
  2. 3. Any substance with a definite composition
  3. 5. Vertical column of the periodic table. ALso called family
  4. 8. Anything that has mass and takes up space
  5. 9. Blend of tow or more kinds of matter, each which retains its own identity and properties
  6. 10. An element that is a good electrical conductor and a good heat conductor
Down
  1. 1. Mathematical technique that uses units to solve problems
  2. 4. The smallest unit of an element that maintains its identity
  3. 6. Horizontal row of the periodic table
  4. 7. The study of substances and processes in living things