science project Crossword
This printable crossword puzzle on the topic of Plate Tectonics & Volcanoes has 20 clues. Answers range from 4 to 19 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
a super continent about 200 million yrs ago
magnetic feild that reverses its direction
mountain ranges on the ocean bottom
central part of the earth
the upper part of the crust
the thin outer layer of the earth
the middle layer of the earth
a field that extends through the earths interior made of nickrl and iorn
when a more dense plate moves over a more dense plate
a rigid slab of the lithosphere that moves on top the athenosphere
fastest and first to arrive an earthquake
slower than a primary wave
slowest traveling waves
the upper part of the mantle
the theory that the earths surface is broken into large rigid plates
vibrations in the ground
the location on the earth's surface directly above earths focus
the position in side the earth were rocks first cause waves
wave energy created by a fault line.
a brake in the earths lithosphere
