Across
- 4. the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
- 5. boundary: places where plates slide sideways past each other.
- 6. the result of physical stress acting upon an object, causing a change in the shape of that object.
- 7. the rigid outer part of the earth, consisting of the crust and upper mantle.
Down
- 1. boundary: occurs when two tectonic plates move away from each other.
- 2. boundary: When two plates come together
- 3. plates: massive slab of solid rock made up of Earth's lithosphere (crust and upper mantle