Across
- 3. make a marked change in the form, nature, or appearance of
- 8. the perceptible natural movement of the air, especially in the form of a current of air blowing from a particular direction
- 9. a process of heat transfer that occurs when heat is moved by the circulation of a fluid (liquid or gas)
- 12. move from one place to another
- 13. the process by which heat or electricity is directly transmitted through the material of a substance when there is a difference of temperature
- 14. the quality of being hot; high temperature
- 16. the quality of being hot; high temperature
- 17. (of an object or material) able to resume its normal shape spontaneously after being stretched or compressed
- 18. the total quantity or weight of organisms in a given area or volume
- 19. relating to or affected by tides
- 20. relating to or determined by the sun
Down
- 1. the strength and vitality required for sustained physical or mental activity
- 2. a large body of matter with no definite shape
- 4. relating to the nucleus of an atom
- 5. relating to movement towards a centre of gravity
- 6. relating to or resulting from motion
- 7. mental or moral strength or power
- 10. the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization
- 11. having or showing the capacity to develop into something in the future
- 15. end the existence of (something) by damaging or attacking it