1. Transverse Wave
The ripples of the water keep moving like a Transverse wave

2. Diffraction
Wave diffraction through an opening at the port of Alexandria in Egypt

3. Concave Mirror

4. Concave lens

5. Convex Mirror

6. Convex lens

7. Color

8. Sound Waves

9. Infrared Waves

10. Microwaves

11. Radio Waves

12. Gamma rays

13. X-rays

14. Ultra-violet rays

15. Frequency

16. Precipitate

17. Chemical Change

18. Physical Change

19. Atom

20. Element

21. Malleable

22. Ductile

23. Rotation

24. Revolution

25. Full Moon

26. Solar Eclipse

27. Lunar Eclipse

28. High Tide

29. Low Tide

30. Sunspot

31. Solar Flare

32. Prominence

33. Sun’s Photosphere

34. Sun’s Corona

35. Solotice

36. Equinox

37. Shadow’s Umbra

38. Shadow’s Penumbra