1. Coming up… Friday 2/10: Today 1/31: Thursday 2/2: Monday 2/6:
Finish ocean water properties (density)
Intro to Sediments
Begin sediment lab
Thursday 2/2:
Finish sediment lab
Discuss ocean sediments
Monday 2/6:
Ocean Acidification
Wednesday 2/8:
Wrap up loose ends
Review time
Friday 2/10:
-- Unit 1 Oceans Test…and begin Unit 2: The Atmosphere!

2. Bellwork 2/3 Look at your Part 1: Biogenous Sediments observations…
Are all of the sediments found in the same places? What might account for differences in locations?
For example, are Coquina, Chalk, and Siliceous Ooze found in the same areas?

3. Bellwork 2/8
Remember, you have a very short lab quiz today! What causes ocean water to change density? How does this relate to the creation of ocean currents?

4. Then we’ll begin Unit 2—THE ATMOSPHERE! 
Coming up…
Tuesday 2/6:
Finish ocean water properties (density)
Intro to Sediments
Thursday 2/8:
Lab Quiz!!
Discuss ocean sediments
Begin Sediment Lab
Monday 2/12:
Finish Sediment Lab
Begin Ocean Acidification
Wednesday 2/14:
Finish Ocean Acidification
Friday 2/16:
Wrap up loose ends
Review
Ocean Test Tuesday 2/20!
Then we’ll begin Unit 2—THE ATMOSPHERE! 

5. Sediments & Ocean Water Properties …a two way street
Ocean currents & water density help us understand the formation and distribution of sediments
Sediments help us understand how ocean water features mechanically work and how the ocean has changed over time

6. Today: Brief look at the sediment types
Quick discussion of how/why sediments are distributed differently

7. Biogenous Sediment Shells and skeletons of marine animals and algae
Can be large grained ….
Ex: shells from larger organisms
….or tiny grained
Ooze: greater than 30% biological shells
Mostly plankton & diatom “skeletons” (both microscopic organisms that live in the open ocean)
Siliceous & Calcareous

8. Macroscopic (large grain) sediment is found along continental shelves
Why?
Microscopic (tiny grain) is found along the sea floor

9. Before we talk about Lithogenous Sediments…

10. Lithogenous Sediment
Weathered from continental rocks and transported to the ocean
Rivers/Streams
Continental Shelf & Rise (beaches) –course grains
Why?
Abyssal plains—fine grains

11. Hydrogenous Sediment
Minerals that crystallize directly from seawater through chemical reactions
Typically found in “open ocean”
Basins & Abyssal plains

12. With that very basic introduction, we’re going to start our Sediment Investigation