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Chapter 6 Earth Vocabulary

Across
Earthquake waves are called _____ waves
The densest materials are at the bottom and the least dense material is at the surface
The most abundant element in the crust
Down
The force that makes our planet and other planets round is ___
The least dense layer of Earth is the _____
How much mass is packed in given volume
In most surface rocks oxygen and silicon elements occur together as __________
The liquid core
The solid core
The second most abundant element in the crust
The shape of the Earth is an _____ spheroid