Across
- 1. special object that refracts light.
- 5. the study of chemicals and how they combined.
- 6. when referring to gold it is near the surface.
- 7. the natural build up of minerals and metals
- 9. the study of organisms and living things.
Down
- 2. the study of things around us.
- 3. a study of matter a chemistry.
- 4. when light is split into the colours of the light spectrum.
- 8. machine that can be programmed or generated by a computer and helps humans.