unit 1 vocab

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Across
  1. 1. A possible explanation for an observation that can be tested
  2. 4. the amount of matter in a object
  3. 5. Matter with a definite composition
  4. 6. A combination of substances not chemically combined
  5. 7. A measure of the gravitational pull on an object
  6. 8. a pure substance made of 2 or more elements chemically combined
  7. 9. a well tested explanation supported by evidence
  8. 10. Part of "scientific method" a step-by-step problem solving process
Down
  1. 2. A change in form, not composition
  2. 3. The standard for measurement in the metric system
  3. 4. The second part of the scientific process involving testing
  4. 6. anything that has mass and takes up space