Across
- 2. resurfacing
- 3. uptake of oxygen and the removal of carbon dioxide from the body.
- 6. rust
- 9. reacts rapidly with oxygen and gives off heat.
- 11. list
- 12. dope calcium fluoride, calcium tungstate and strontium molybdate
Down
- 1. the statistical error, which is the difference between the measured value and the actual value.
- 3. basic building blocks of ordinary matter.
- 4. sugar and oxygen from carbon dioxide, water and sunlight
- 5. showing, or involving a system, method, or plan.
- 7. an additive in alloys
- 8. point
- 10. for the human body