9/24/11 1 Introduction to Oceanography • Lecture 2: Scientific notation, Earth and the origin of our oceans Magma degassing at Halemaumau Crater, Kilauea, Hawaii April 2008, Mila Zinkova, wikimedia, CC A S-A 3.0 " Introduction to Oceanography 1. Attend Your Lab Section! ! !--TA’s have PTE#’s! 2. Podcasting! More Halemaumau (same image credit)" Scientific Units: The S.I. System • SI units: Length: meters, m Time: seconds, s Mass: kilogram, kg Temperature: ºC (ºK) Stilfehler, Wikimedia, Public Domain 1-1111, Wikimedia, Creative Commons A. S.-A. 3.0 Randy Montoya, Wikimedia, Public Domain Racklever, Wikimedia, Creative Commons A. S.-A. QUESTIONS? Water-be aring “Fountains” on Saturn’s moon Enceladus, Cassini Spacecraft NASA/JPL/SSI, Public Domain" Scientific Notation • Compact form for writing very large or very small numbers Scientific Notation • Powers of 10: 10 1 =10 10 2 =10 "10 =100 10 3 =10 "10 "10 =1,000 10 4 =10 " 10 " 10 " 10 =10,000