Across
- 2. sound travels as ________ waves.
- 5. we draw forces using them
- 6. partial shadow
- 8. type of indicator
- 9. A number of forces acting on an object may be replacedby a single force that has the same effect as all original forces acting together. This single force is called a ______ force.
- 10. shape of the earth
- 12. copper oxide+sulfuric acid produces water and ______.
Down
- 1. K
- 3. full shadow
- 4. separates large insoluble solids from a liquid
- 7. liquid that passes though a filter
- 11. outer white layer of the tooth which is a calcium phosphate mineral