Video 1: Atomic Structure (2:01)
Video 2: Ionic vs. Covalent bonds (2:13)
Video 3: Electronegativity (2:07)
Video 4: Polarity and Hydrogen Bonds (2:32)
Video 5: The Properties of Water (4:12)
Video 6: Water Cycle (2:47)
Video 7: The Earth's Water Cycle (0:43)
Video 8: Acids, Bases and pH (1:59)
Video 9: Acid Rain (1:43)