O


 * Name: Oxygen

Origin of name:** "Oxys" meaning acid. "Genes" meaning producer


 * Discovered by:** Carl Scheele


 * Date of Discovery:** 1773


 * Isotopes:** 3 prominent (16,17,18)


 * Group:** Chalcogens


 * Atomic Weight:** 15.99943g


 * Number:** 8


 * Symbol:** O

1. Aerobic organisms depend on oxygen for respiration. 2. All combustion reactions depend on oxygen. 3. The human body is 2/3 oxygen based on weight. 4. Forms Chemical reactions with most all other elements. 5. Protects earth from harmful UV rays.
 * Interesting Fact:**


 * Visual that represents this element:**




 * Multimedia that represents this element:

[|oxygen video]**


 * What lesson or lab would you use to illustrate this element to a class?**