vocabulary

Across

3. – heat
4. – compactness
6. – thermal
7. – range
8. – oscillation
9. – link
10. – uptake
14. – impact
15. – illumination
17. – disorder

Down

1. – matter
2. – bounce
5. – waves
9. – transfer
11. – unit
12. – emission
13. – power
16. – warmth