1. Unit 2
The Living World

2. Unit 2 Lesson 2 Watch “Lethal Seas” (55 minutes long) on-line
2. Answer the questions in your IAN.

3. Ocean Acidification
In your IAN, answer the following questions in a summary AND draw a picture/diagram that depicts what this video was about. Use color and title on top!
What did Mark Weigardt notice in 2007?
Compare the healthy larvae with an unhealthy larvae (physically & behaviorally).
Why is the absorption of CO2 into the ocean considered a good thing?
What is driving down the pH in the ocean?
EXPLAIN how it works!
What do oysters (& many other invertebrates) make their shells out of?
What are coral reefs made of?
What is causing the bubbles in Papua New Guinea & what is it doing to the water chemistry?
What was the difference in biodiversity in the corals between the pristine reef and the “bubble one”?
What are pteropods & why are they important?
Describe the 2 experiments performed and the difference in the behaviors between the normal pH and low pH conditions.
In 3 sentences, summarize what you learned about ocean acidification.

4. End of Unit 2 Lesson 2