This document defines 10 important Earth science terms: the asthenosphere is the layer between the upper and lower mantle; the inner core is made of iron and nickel at the center of Earth; the outer core is the coating around the inner core; P waves and s waves are types of seismic waves that can travel through solids and liquids; L waves only travel on land and cause the most damage; convection is the transfer of heat through liquids; convection currents involve warm fluid rising and cool fluid sinking in the mantle; density refers to how tightly packed atoms are in an object; and the exosphere is the outermost layer of the atmosphere.

1. Words and DefinitionsThe 10 top wordsby : Zoe, Tyler, Chris, Dontae

2. AsthenosphereThe layer that separates the upper and lower mantle.

3. Inner CoreThe center of the Earth, made of iron and nickel.

4. Outer CoreThe outer coating of the inner core

5. P. WavesWaves that can through liquids and solids.

6. s. wavesWaves that can only travel through solids.

7. L. WavesWaves that can only travel on land and cause the most damage.

8. The transfer of heat through a liquid.Convection

9. Convection CurrentWarm fluid rises because it is less dense, then it cools down, becomes more dense, and sinks toward the mantle.

10. How tightly packed the atoms inside an object are.Density

11. ExosphereThe last layer of the Earth’s atmosphere.