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

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

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

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

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

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

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

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

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

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

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

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