Lesson 8 G3 Two Source Interference of Waves G4 The Diffraction Grating.
1 Light & Waves L2 NCEA Achievement Standard 2.3 Text Book reference: Chapters 12,13 &14.
1 Lecture 1: Geologic Time and Plate Tectonics Questions –How do geologists place the events of geologic history in sequence? What is correlation? –What.
Disturbances All waves carry energy Waves displace matter –Waves do NOT carry matter drussell/Demos/waves/wavemotion.html.
ARCHAEOLOGICAL DATING TECHNIQUES. SIR MORTIMER WHEELER new archaeology excavated urban centres layer by layer The important thing is that the archaeologist.
Dating Rock Layers How to tell how old the layers of rock are.
Chapter 6 review. 1. UNIFORMITARIANISM: -The processes that shape the Earth today are the same processes that occurred in the geologic past The present.
Time is not part of rock cycle, but is implied Example: a granite could be weathered and the particles eventually become part of a sandstone. The sandstone.
Geologic Time. The geologic time scale is based upon rock and fossil evidence. It is broken into the following divisions from largest to smallest: eon,
The Fossil Record and Geologic Time Scale Fossils and Geologic Time.
Understanding Earth Sixth Edition Chapter 8: CLOCKS IN ROCKS Timing the Geologic Record © 2011 by W. H. Freeman and Company Grotzinger Jordan.
Class 4 Systems and Solutions. 1 st Order Systems.