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

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

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

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

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

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

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

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

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

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

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

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