Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Science 7 Chapter 14--Lesson 2 Notes Name _______________ 13-14 Earthquakes and Volcanoes liquefaction—solid material acts more like a liquid than a solid due to extreme shaking tsunamis—huge ocean waves Earthquakes can cause huge waves in the ocean from the upward movement of rock. volcanoes—landforms that form when magma erupts onto Earth’s surface as lava lava—molten rock on Earth’s surface magma—molten rock below Earth’s surface Once cause of volcanic eruptions is a decrease in pressure, which causes rocks to melt more easily. Continental crust is formed by cooling lava. Composite volcanoes are cone-shaped. They form as lava flows and ash layers deposited by explosive eruptions. 1 Science 7 Chapter 14--Lesson 2 Notes Name _______________ 13-14 Shield-shaped are large volcanoes formed by many thousands of lava flows. volcanic ash 1) Explosive eruptions eject _______________________ high into the atmosphere. 2) Which landform is NOT associated with volcanic eruptions? a. b. c. d. caldera fault lava flow mid-ocean ridge Transform boundary 3) _____________________ is the type of plate boundary where volcanoes do not normally form. 2