1. Things that Excite Electrons Heat Light Electricity Chemical Reactions Nuclear Decay

2. Things that Excite Electrons Heat examples: Flame Lab Methanol Demonstration LiClSrCl 2 CuCl 2 KClNaClWood Fire

4. Things that Excite Electrons Heat examples: Flame Lab Methanol Demonstration Fire Fire Works

5. Things that Excite Electrons Heat examples: Flame Lab Methanol Demonstration Fire Works Fire Things that are “Red Hot” Dude, that’s hot.

6. Things that Excite Electrons Light examples: Fluorescence - A photon creates a very brief excited state (10 -9 to 10 -6 seconds) then when the electron returns to the ground state a different type of photon is released. Fabric brighteners and how they work Black lights and posters Phosphorescence - A photon creates longer excited state (10 -3 to several minutes). Glowing Bones and other glow things

7. Fluorescence: Photographed with a black light

8. South Korean scientists tinkering with fluorescence protein genes say they have bred white Turkish Angora cats to glow red under ultraviolet light. Fluorescence: Photographed with a black light

9. Phosphorescence

10. Things that Excite Electrons Electricity examples: Lightning Arc from an electrical shock Emission tubes Fluorescent light bulbs Neon lights

12. Chaiten volcano in Chile in May 2008

15. Giant Van de GraaffMario TeslaArc Attack

19. Things that Excite Electrons Chemical Reaction (Chemiluminescence) examples: Glow sticks / necklace “Bioluminescence”

24. Bioluminescence When living organisms can do chemiluminescence

28. Glow Worm Cave

34. Movie Link Waves Link

35. Things that Excite Electrons Nuclear Reaction examples: Radioactive Decay

36. Radium mixed with copper-doped zinc sulfide produces a paint that will glow in the dark. The radiation from the decaying radium excites electrons in the doped zinc sulfide to a higher energy level. When the electrons returned to the lower energy level, a visible photon was emitted.

37. Actinium is a silvery radioactive element that glows pale blue in the dark.

38. This is a photo of uranium glass, which is a glass to which uranium was added as a colorant. Uranium glass fluoresces bright green under a black or ultraviolet light.

39. The night sights on some guns and other weapons use radioactive tritium- based paint. The electrons emitted as the tritium decays interact with the phospor paint, producing a bright greenish light.

40. Nuclear reactors display a characteristic blue glow because of Cherenkov radiation, which is a type of electromagnetic radiation that is emitted when a charged particle moves through a dielectric medium faster than the phase velocity of light. The molecules of the medium are polarized, emitting radiation as they return to their ground state.

42. Spent fuel rods in a holding pool.

43. Things that Excite Electrons Heat Light Electricity Chemical Reactions Nuclear Decay

44. POP Quiz! A) Heat B) Light C) Electricity D) Chemical Reactions E) Nuclear Decay 1)Fire works 2)Bioluminescence 3)Neon signs 4)Glowing toys 5)Fluorescent lights 6)Regular “incandescent” lights 7) Radioactive glowing 8) Fire 9) Glow sticks 10) Fireflies What’s exciting those electrons?