2 min video showing a cathode ray tube ......and More Explanation from Tyler DeWitt

12 min video about Millikan's oil drop experiment with Tyler DeWitt

4 min video to "see" and explain Rutherford's Gold foil experiment

...and now more videos just for fun....
Thermite reaction. Check out this goofy video demonstrating the termite reaction.
Fe2O3 + 2 Al 2 Fe + Al2O3

Take an accurate look at various alkali metals in water.
2 Na + 2 H2O 2 NaOH + H2

Post WWII disposal of sodium metal
2 Na + 2 H2O 2 NaOH + H2

Pharoh's Snake
Decomposition of Mercury(II) thiocyanate