science vocabulary

2. the region where two tectonic plates are in contact
3. the color of a mineral in powdered form
6. The deepest part of the ocean floor; made up of rolling hills and flat plains.
11. a naturally formed, inorganic solid that has a specific chemical formula and repeating three-dimensional structure
12. the movement of material due to differences in density that are caused by differences in temperature
13. the comparison of the density of one material as it relates to another
14. the way the surface of a mineral reflects light
15. A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions.
17. A plate boundary where two plates move past each other in opposite directions
18. A plate boundary where two plates move toward each other.
20. the soft layer of the mantle on which the lithosphere floats.
21. earth's crust and solid upper mantle, broken into tectonic plates
22. a type of rock that forms from the cooling of molten rock at or below the surface
23. geological event in which the shaking of earth's surface occurs due to the movement of rock at plate boundaries.
24. Earth's rocks change from one type into another over time due to various Earth processes

1. Sections of the Earth's crust that move due to convection currents.
4. Geological event in which molten rock spews out from the mantel to the surface of Earth as ash, lava, and gases
5. A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together
7. the process in which a denser plate is pushed downward beneath a less dense plate when plates converge
8. Geological event that occurs when continental plates of equal density converge, resulting in mountain chains
9. a measure of how much mass is contained in a given volume.
10. a measure of how easily a mineral can be scratched
16. a current caused by the rising of heated material and sinking of cooled material
19. A plate boundary where two plates move away from each other.