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Earth-Space Science Week 1: Structure of the Earth

Across
The layer of the Earth that we stand on and that is only a few miles thick
This machine measures the strength of the energy waves sent out by an earthquake
The Hawaiian Islands were formed by one or several of these, which bring new rock to the surface of the Earth
Down
The place where movement begins during an earthquake
_________ waves, or P waves, can travel through solids and liquids.
This is the study of rocks and the Earth