A) faults
B) plates
C) humps
D) bumps

A) 900 degrees F
B) 90 degrees F
C) 9,000 degrees F
D) 9 degrees F

A) outer core
B) inner core
C) mantle
D) plate

A) a jigsaw puzzle
B) an exploding bomb
C) gooey oatmeal
D) the back of an elephant

A) The earth's crust is made of metal.
B) People have dug to the center of the earth.
C) There are no mountains under the ocean.
D) The earth's plates have drifted apart.

A) magma forcing the earth's crust into a dome
B) a place underground breaking away from another plate
C) a huge wave traveling miles through the ocean
D) outer layers of the earth pressing down on the inner core

A) shoot up like flames from a fire
B) go around in circles like a ball at the end of a string
C) build up a wall of mud sliding into a building
D) work outward like ripples from a stone thrown in a lake

A) a few of them
B) all of them
C) most of them
D) none of them

A) block
B) dome
C) ridge
D) fold

A) it sits on cracks in a plate
B) India continues to push northward
C) wind will shape huge ridges
D) magma will bulge up under the crust and cause a bump

A) an explosion
B) a flood
C) sandpaper
D) a blizzard

A) to scare people
B) to explain what is happening to the earth
C) to explain weather
D) to warn people about dangerous places to live