Across
- 2. A panel designed to absorb the sun's rays as a source of energy for generating electricity or heating.
- 4. Situated on the exterior or external surface of something.
- 6. Dress of a distinctive design worn by members of a particular group and serving as a means of identification.
- 7. A fellow member of a class at school or college.
- 10. On the inner side of.
- 12. The quality of being hot or warm, or the temperature of something.
- 15. The absence of light in a place.
- 18. Having a relatively small amount of coloring agent.
- 19. To perform an activity or exercise a skill repeatedly or regularly in order to improve or maintain one's proficiency.
- 20. The necessary items for a particular purpose.
Down
- 1. The activity or condition of competing.
- 3. To create a miniature version of something.
- 5. The outside part or uppermost layer of something; often used when describing its textura, form, or extent.
- 8. Reflecting light, typically because very clean or polished.
- 9. A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
- 11. The devotion of time and attention to acquiring knowledge on an academic subject.
- 13. To have one's knowledge or ability tested formally, often in writing.
- 14. The person with the highest authority in an organization, institution, or group.
- 16. to cast back (light, heat, sound, image, etc.) from a surface.
- 17. The structure forming the upper covering of building or vehicle.