Earth

4. currents Heat energy transfer between two parts of a fluid of different temperatures. When hot fluids rise and cold fluids sink.
8. the layer of the Earth between the crust and the core
9. Rigid layer made up of the uppermost part of the mantle and the crust
10. Layer of molten iron and nickel that surrounds the inner core of the Earth
12. waves that are created as a result of vibrations between an electric field and a magnetic field
13. Vibrations that travel through Earth carrying the energy released during an earthquake

1. 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
2. A strong, hard magnetic silvery-gray metal,
3. the degree of compactness of a substance.
5. a silvery-white metal
6. Dense sphere of solid iron and nickel at the center of Earth
7. the quality of being easily shaped or molded.
11. Thin and solid outermost layer of the Earth above the mantle
12. A molten mixture of rock-forming substances, gasses, and water from the mantle