Essential Question: SPI and SPI Why did Alfred Wegener propose the Theory of Continental Drift? Activating Strategy: Use the magnetic continent/Pangaea board to excite discussion and prior knowledge or use the idea in the teacher edition on page 301 creating puzzles from magazine pictures and have students explain how they know how to reconstruct their neighbor’s puzzle. Teaching Strategies: Create vocabulary chart. Pangaea cut and paste puzzle. Put in spiral. Need glue and colored pencils. Read text for details leading to the Theory of Continental Drift. Complete Graphic Organizer. Use text page 307 to complete the “Seafloor Spreading Rates” lab for extension activity or bonus. Summarizing Strategy: Use your GO to construct support to answer the EQ. Homework: WB pg 95 and 96 or “Continental Drift” WS.

Daily Work 1.The Moho Discontinuity separates which two layers of the Earth? 2.Which layer of Earth is the thinnest? 3.The inner core is made from solid ______ which might create our gravitational field. 4.According to your vocabulary, which layer of the earth do the plates slide around on? 5.What are the two types of crust found in the lithosphere?

Vocabulary Term HintDefinition Pangaea Continental Drift plate tectonics glacial striations

Vocabulary Term HintDefinition Pangaea Theorized, large, ancient landmass that was composed of all the continents joined together Continental Drift plate tectonics glacial striations

Vocabulary Term HintDefinition Pangaea Theorized, large, ancient landmass that was composed of all the continents joined together Continental Drift Alfred Wegener’s hypothesis that all continents were once connected in a single large landmass that broke apart about 200 million years ago and drifted slowly to their current positions plate tectonics glacial striations

Vocabulary Term HintDefinition Pangaea Theorized, large, ancient landmass that was composed of all the continents joined together Continental Drift Alfred Wegener’s hypothesis that all continents were once connected in a single large landmass that broke apart about 200 million years ago and drifted slowly to their current positions plate tectonics Theory that Earth’s crust and upper mantle called the lithosphere is broken into plates that float and move around on a plasticlike layer of the mantle called the asthenosphere glacial striations

Vocabulary Term HintDefinition Pangaea Theorized, large, ancient landmass that was composed of all the continents joined together Continental Drift Alfred Wegener’s hypothesis that all continents were once connected in a single large landmass that broke apart about 200 million years ago and drifted slowly to their current positions plate tectonics Theory that Earth’s crust and upper mantle called the lithosphere is broken into plates that float and move around on a plasticlike layer of the mantle called the asthenosphere glacial striations scratches cut into rock by the movement of glaciers downhill

Theory of Continental Drift or “Pangaea” Why did Alfred Wegener propose the Theory of Continental Drift? and 7.7.3

Continents fit together like a puzzle. Matching fossils found on continental coasts oceans apart. Similar rock structures found where continents would have been connected. Theory of Continental Drift or “Pangaea” Why did Alfred Wegener propose the Theory of Continental Drift? and Clues of major climate Changes across the globe. Ex. Matching glacial striations

Pangaea

Lab: Seafloor Spreading Rate Bonus opportunity! Peak Distance west normal polarity Distance east normal polarity Average distance Age from scale (millions of years) Rate of movement (cm/yr)

Summarize Use your Graphic Organizer and map of Pangaea to construct support to answer the “Essential Question”. Why did Alfred Wegener propose the Theory of Continental Drift?

Timetracker Science: Read pages Do WB pgs 95 and 96

Vocabulary Term HintDefinition Pangaea Theorized, large, ancient __________ that was composed of all the ___________ joined ____________ Continental Drift Alfred ________’s hypothesis that all __________ were once _________ in a single large landmass that broke apart about 200 million years ago and _______slowly to their current positions plate tectonics Theory that Earth’s crust and upper mantle called the ________ is broken into plates that _____ and move around on a plasticlike layer of the mantle called the _____________ glacial striations ________ cut into rock by the movement of ____________ downhill