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

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

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

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

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

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

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

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

A) dome
B) fold
C) block
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) an explosion
C) a blizzard
D) sandpaper

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