Plate Tectonics Worksheet Name _________________________
1. What are the 2 types of crust found on Earth’s surface?
2. How many major tectonic plates on Earth’s surface?
3. What causes the movement of the plates?
4. The layer of the earth that is made up of the crust & upper mantle is called the ______________.
5. What is caused by the action of hot material rising and cool material sinking?
6. Which layer of earth includes the crustal plates? Is it the lithosphere or the asthenosphere?
7. Where do convection currents take place? Is it in the lithosphere or the asthenosphere?
8. What scientist proposed the continental drift theory in 1912?
9. How far do scientists estimate the plates move in a year?
10. The supercontinent formed when all the continents were together was called _____________.
11. There are 2 main reasons geologists think the continents were once connected. One reason is that some
coastlines share similar fossils. What is the other reason?
