1. Life at the Ocean’s Edge Earth’s Waters Chapter 5.2 Pages 156-161

2. Living Conditions Page156-157 What are the 6 physical factors that affect ocean environments? What are the 6 physical factors that affect ocean environments? How do scientists classify marine organisms? How do scientists classify marine organisms? What are the 3 categories of classification for marine organisms? Describe each one. What are the 3 categories of classification for marine organisms? Describe each one.

3. Living Conditions Page156-157 What are the 6 physical factors that affect ocean environments? What are the 6 physical factors that affect ocean environments? – Salinity, Water temperature, Light, Dissolved gases, Nutrients, and Wave action How do scientists classify marine organisms? How do scientists classify marine organisms? – According to where they live and how they move

4. Living Conditions Page156-157 What are the 3 categories of classification for marine organisms? Describe each one. What are the 3 categories of classification for marine organisms? Describe each one. – Plankton are tiny algae / animals that float along currents – Nekton can swim freely (fish, squid & marine mammals) – Benthos organisms like crabs and sponges live on the ocean floor

5. On the Rocks Page 158 What is the Intertidal Zone? What is the Intertidal Zone? – Area including the highest high-tide point on land to the point on the continental shelf exposed by lowest low-tide Why is it difficult for organisms to survive in this zone? Why is it difficult for organisms to survive in this zone? – Organisms must tolerate harsh wave action, changing temperature & salinity, and being exposed to the open air (predators)

6. Ocean Breathes Salty Page 160 What are Estuaries? What are Estuaries? Describe brackish water. Describe brackish water. Why is a Salt Marsh a suitable environment for many organisms? Give 3 reasons. Why is a Salt Marsh a suitable environment for many organisms? Give 3 reasons. Explain why Mangroves are valuable to coastal regions. Explain why Mangroves are valuable to coastal regions.

7. Ocean Breathes Salty Page 160 What are Estuaries? What are Estuaries? – Coastal inlets or bays where fresh river water mixes with salty ocean water Describe brackish water. Describe brackish water. – Brackish water is partly salty and partly fresh

8. Ocean Breathes Salty Page 160 Why is a Salt Marsh a suitable environment for many organisms? Give 3 reasons. Why is a Salt Marsh a suitable environment for many organisms? Give 3 reasons. – Salt Marshes provide sediments from fresh water; nutrients from cordgrass; breaks up waves, creating shelter for many organisms

9. Ocean Breathes Salty Page 160 Explain why Mangroves are valuable to coastal regions. Explain why Mangroves are valuable to coastal regions. – Mangroves can withstand hurricane winds, preventing dramatic change to the coastline each hurricane season