Lesson 119 9 th Grade * Teacher Prep Photocopy New Assignment Log Portfolio 9
Lesson 119 9 th Grade * Teacher Prep Standard & Objective: S3 O3d USOE Text Pages: 152-153 Materials: Portfolio 6
Lesson 119 * 9 th Grade Mr. Petersen Science 9 th Grade
Announcements: Tutoring after school Tuesday and Thursday.
Self Starter * 4/12/2015 * Lesson 119 Today s Learning Objective and Questions Write Everything! 20 Points Today s Learning Objective: Students will learn the cause and effects of global warming. Essential Question: List at least one natural process that adds CO 2 in the atmosphere. Answer: Volcanic eruptions & decay or burning of organic matter. Homework: Study for tomorrow s quiz.
Pass out New Assignment Log Portfolio 8.
1. Extinction- 9 th Grade *Glossary List * Portfolio 6 Make sure you write down the whole definition. Number and underline each word. 1
Assignment Number Assignment Log * Portfolio 6 Assignment Title Lesson Number 1 Glossary 119 2 Cornell Notes 119 3 4 5 6 7 8 9 10
CAUSES OF GLOBAL WARMING Recent global warming trends. Figure on the next slide will show the increase in carbon dioxide since 1960. Carbon dioxide is a greenhouse gas. It s one of several gasses in the air. This has created a greater greenhouse effect.
How much more carbon dioxide was in the air in 2005 than in 1960?
Cornell Notes Portfolio 8 [ 2] Effects of Global Warming: 1. Carbon Dioxide is the major greenhouse gas. 2. As the Earth gets warmer the sea level will raise.
EFFECTS OF GLOBAL WARMING As Earth has gotten warmer, sea ice has melted. This has raised the level of water in the oceans. Figure on the next slide shows how much sea level has risen since 1880.
How much did sea level rise between 1880 and 2000?
Other effects of global warming may include more extreme weather. Many living things may not be able to adjust to the changing climate. For example, coral reefs are dying out in all the world s oceans due to climate change and other factors.
Cornell Notes [ 2] 3. More extreme weather. 4. More Extinctions of plants and animals. Many living things may not be able to adjust to the changing climate. 5. For example, coral reefs are dying out in all the world s oceans due to climate change.
Student Read It's a cautionary tale with a twist. Unless we do more to protect them, coral reefs could become extinct by 2050 due to pollution & climate change. The video on the next slide was released just ahead of the landmark Copenhagen summit on climate change in order to draw attention to the plight of these fragile ecosystems. Sadly, the summit ended in failure -- and the future of our reefs is still at risk. Video: Coral Reef Extinction. Next Slide * 12 minutes
How Will Climate Change in the Future? Look at the projections in Figure to the side. The temperature in 2100 may be as much as 5 C (9 F) higher than it was in 2000. A 5 C decrease in temperature led to the Pleistocene ice age. How might a 5 C increase in temperature affect Earth in the future? Projections of several different models are shown here. They all predict a warmer future
Student Read One effect of higher temperatures will be more melting of sea ice. The figure to the side shows how much less sea ice there may be in 2050 if temperatures keep going up. This would cause sea level to rise even higher. Some coastal cities could be under water. Millions of people would have to move inland. How might other living things be affected?
Student Read In 2013, scientists released new projections for future sea level rise for the Chesapeake Bay and for Maryland, Virginia and nearby Mid- Atlantic coastal areas. In these regions, sea levels are rising faster than the global average, the result of subsiding lands, a slowing Gulf Stream and melting land ice in Antarctica. Watch the following video on Rising Sea Levels.
Cornell Notes [ 2] Write 4 questions. Put the answers in the summary. Share the questions with the class for participation points.