Across
- 5. any of a group of organic compounds which are essential for normal growth and nutrition to improve life
- 7. a device that activates another device when the temperature (heat) reaches a certain point
- 8. a picture produced on light-sensitive material
Down
- 1. instrument for measuring temperature particularly heat
- 2. in geometry, a plane figure with at least three straight sides and angles, and typically five or more
- 3. the state of being strong and active with life
- 4. in geometry, a solid figure with many plane faces, typically more than six
- 6. written material produced by a process involving the action of light on a specially prepared surface