* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download 30.Ocean Properties - stoffregen
Survey
Document related concepts
Blue carbon wikipedia , lookup
Challenger expedition wikipedia , lookup
History of research ships wikipedia , lookup
Abyssal plain wikipedia , lookup
Marine debris wikipedia , lookup
Pacific Ocean wikipedia , lookup
Southern Ocean wikipedia , lookup
Anoxic event wikipedia , lookup
Indian Ocean Research Group wikipedia , lookup
Marine biology wikipedia , lookup
Arctic Ocean wikipedia , lookup
Indian Ocean wikipedia , lookup
Marine habitats wikipedia , lookup
Marine pollution wikipedia , lookup
Ecosystem of the North Pacific Subtropical Gyre wikipedia , lookup
Ocean acidification wikipedia , lookup
Transcript
30.Ocean Properties EQ: What are the different aquatic ecosystems? Why are they so important to life on Earth? LT: I can identify the three life zones and the three layers within the ocean. LTask: I will identify key properties of Earth’s oceans. I will research the Ocean’s Zones and Layers using my iPad. I will complete a “KeyQuest” to learn more about how organisms are adapted to life in the ocean. Welcome! Warm Up 3/12/14 1. Explain why the absence of the Giant Kelp will lead to the disappearance of the Sea Otter 2. Explain why the absence the sea otter will lead to the disappearance of the Giant Kelp. Table of Contents Title Water Properties Webquest Water Cycle Brainpop Water Cycle Vocabulary Water on Earth Notes River Basin Notes River Basin Vocab River Basin Scavenger Hunt Estuaries Notes Wetlands Diagram River Basin to Estuary Wetlands and Estuaries Vocab Estuary Ecosystems Ocean Food Webs Ocean Properties 1 Assignment # 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Ocean Properties & other cool stuff about the oceans! 21 Salinity • Salinity - the total amount of salt material dissolved in water • Comes from: – Eroding Land – Reactions at sea floor – Volcanic Emissions Desalination • Desalination is the • • process of removing salt from water It’s typically done by boiling the water, and trapping and cooling the water vapor so that it condenses as fresh water Expensive – it uses a lot of fossil fuels to heat the sea water Gases in the Ocean • Gases in ocean similar to that of the atmosphere – CO2, N2, and O2 • Oxygen and Carbon Dioxide exchange – Photosynthesis = Make oxygen – Respiration = Make carbon dioxide Temperature Changes • Temperature changes in 2 directions: – Latitude (North vs. South) – Surface waters near equator > surface waters at poles – Depth – Deeper waters = colder (less sun!) • Thermocline – Layer of ocean water with a sudden change in temperature in relation to depth. Hydrothermal Vents • Seawater moves into the ocean from cracks in Earth’s crust. • Very high temperatures (sometimes 100°C!) • Unique ocean life! Upwelling • The movement of cold water upward from the deep ocean • This brings up tiny organisms (food), minerals, and nutrients • Because of all this food, zones of upwelling are usually home to huge schools of fish pH • The measurement of how acidic or basic a solution is. • Acidic = Low pH • Neutral = pH of 7 • Basic = High pH Changing pH • Increased atmosphere CO2 = lowers the pH of ocean • This is known as Ocean acidification • Animals dying! = Ocean Zones & Layers KeyQuest • Use SAFARI, go to www.stoffregen.wikispaces.com • Click on 30.Ocean Zones & Layers.key • Use the Keynote to answer the questions on your KeyQuest Handout Popplet: Create an Ocean Food Web • You need 3 plankton, 3 nekton, and 3 benthos in your food web. • You also need at least one TERRESTRIAL (a.k.a. land) organism that eats something in your Ocean food web. • Remember, this is due on FRIDAY!