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Scott Foresman Reading Vocabulary Unit 5
Wreck of the Titanic
Narrative Nonfiction

cramped shut into a small space
debris scattered fragments; ruins
interior inner surface or part; inside
ooze a soft mud or slime, especially at the bottom of a pond or river or on the ocean bottom
robotic a machine with moving parts and sensing devices controlled by a computer
sediment material that settles to the bottom of a liquid
sonar device for finding the depth of water or for detecting and locating underwater objects.  Sonar sends sound waves into water, and they are reflected back when they strike the bottom or any object.