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