Happy Lesson The Earth’s Crust Adapted from: The Earth’s Crust Adapted from:

1.We live on the earth's crust, which is a thin layer of ___on the Earth's surface. rock (correct answer) soil water 1.We live on the earth's crust, which is a thin layer of ___on the Earth's surface. rock (correct answer) soil water

2. The solid rocky outer layer of the Earth, consisting of the crust and the outer part of the mantle, ____form(s) a continuous unbroken covering around the Earth. does does not (correct answer) 2. The solid rocky outer layer of the Earth, consisting of the crust and the outer part of the mantle, ____form(s) a continuous unbroken covering around the Earth. does does not (correct answer)

3. This rocky layer is divided into sections called ___. plates (correct answer) continents oceans 3. This rocky layer is divided into sections called ___. plates (correct answer) continents oceans

4. These _____move around or "float" on top of the gooey molten rock that makes up the softer mantle. plates (correct answer) pieces sections 4. These _____move around or "float" on top of the gooey molten rock that makes up the softer mantle. plates (correct answer) pieces sections

5. What happens when these plates move? [A] They can collide. (correct answer) [B] They can move apart. (correct answer) [C] They can slide past each other. (correct answer) [D] They can combine to form one plate 5. What happens when these plates move? [A] They can collide. (correct answer) [B] They can move apart. (correct answer) [C] They can slide past each other. (correct answer) [D] They can combine to form one plate

6. As the plates move apart, magma(molten rock) oozes up and forms new crust in the form of a _____along the ocean floor. One such ridge can be found along the middle of the Atlantic Ocean. ridge (correct answer) trench 6. As the plates move apart, magma(molten rock) oozes up and forms new crust in the form of a _____along the ocean floor. One such ridge can be found along the middle of the Atlantic Ocean. ridge (correct answer) trench

7. Volcanoes and oceanic trenches partly encircling the Pacific Basin form the so-called, a zone of frequent earthquakes and volcanic eruptions. Ring of Fire (correct answer) Circle of Life 7. Volcanoes and oceanic trenches partly encircling the Pacific Basin form the so-called, a zone of frequent earthquakes and volcanic eruptions. Ring of Fire (correct answer) Circle of Life

8. When two continents meet head- on, neither is subducted. Instead, the crust tends to buckle and be pushed upward or sideways. Some of the world's tallest mountains are a result of continental-continental convergence (correct answer) oceanic-oceanic convergence 8. When two continents meet head- on, neither is subducted. Instead, the crust tends to buckle and be pushed upward or sideways. Some of the world's tallest mountains are a result of continental-continental convergence (correct answer) oceanic-oceanic convergence

9. New crust is formed as the plates pull away from each other. This describes _____. divergent boundaries (correct answer) convergent boundaries transform boundaries (slidiing boundaries) 9. New crust is formed as the plates pull away from each other. This describes _____. divergent boundaries (correct answer) convergent boundaries transform boundaries (slidiing boundaries)