Week 2 Scientific Investigation Coral Bleaching and Ocean

Week 2 Scientific Investigation Coral Bleaching and Ocean Acidification

Objectives for the lab After completing this lab topic, you should be able to: 1. Identify and characterize questions that can be answered through scientific investigation. 2. Define hypothesis and explain what characterizes a good scientific hypothesis. 3. Identify and describe the components of a scientific experiment. 4. Be able to relate the interconnection between global warming, coral bleaching and ocean acidification 5. Investigate whether increased amounts of CO 2 in the atmosphere are making our oceans more basic or more acidic 6. Learn how a change in oceanic p. H is impacting coral reefs

Is this a good experiment? • https: //www. youtube. com/watch? v=pt 2 f. Sq 46 Pcw

Carbon Dioxide and Global Warming

Coral Bleaching • http: //www. hhmi. org/biointeractive/coralbleaching

Why do corals bleach?

Coral bleaching destroys the coral reef ecosystem https: //emmachutchinson. wordpress. com/2015/02/12/ocean-acidification-ahidden-impact-of-climate-change/

Ave sea surface temperature change between 1901 and 2015.

Change in seawater p. H

Three Lab Activities 1. Scientific Method Worksheet § Design an experiment to test effect of CO 2 acidification in coral skeletons 2. Coral Bleaching Worksheet § Construct graph and answer questions 3. Ocean Acidification activity and worksheet Class will design an experiment to test the effect of CO 2 acidification to coral skeletons. Use p. H strips or color of phenol red indicator to test change in p. H Use total hardiness strip to test for Ca content

Testing p. H and Ca 2+ content