Across
- 1. theory that states that the earth's outer layer, or lithosphere, is broken into several large slabs called plates.
- 5. Hard and rigid, it's the earth's outermost and thinnest layer
- 6. An extremely hot, solid sphere of mostly iron and nickel at the center of the earth.
Down
- 2. the only liquid layer of the earth
- 3. this dense layer made of hot, semisolid rock
- 4. Greek word for all the earth