Unit 8 Vocabulary

Very old or existing for a long time

• erosion

• ancient

• igneous rock

• fossil

Convection

• Heat transfer through the movement of energy
• Heat transfer through the movement of solids
• Heat transfer through the movement of fluids(liquids and Gasses)

• Heat transfer through the movement of gases

Basalt

• An extrusive igneous rock, which forms from volcanic lava that cools rapidly at Earth's surface

• Rocks that are formed when there is a change in the heat or the pressure of their environment

• A rock that is formed chiefly from animal remains (as shells or coral), consists mainly of calcium carbonate, is used in building, and gives lime when burned

• metamorphic rock, which started as limestone and changed to marble from Earth's heat and pressure over thousands of years

Rocks or particles of soil or silt are carried from one location and placed in another, usually by moving water or wind

• Weathering

• Erosion

• Deposition

• Melting

The process of breaking down and carrying away sand or other land debris through various powerful forces, mainly wind, water and ice

• Erosion
• Sedimentation
• Weathering
• Deposition

Rocks that are formed from pre-existing rocks or pieces of once-living organisms

• metamorphic rocks
• sedimentary rocks
• volcanic rocks
• igneous rocks

Types of rocks that are formed when molten rock (rock liquefied by intense heat and pressure) cools to a solid state

• Sedimentary rocks
• Metamorphic rocks
• Volcanic rocks
• Igneous rocks

A collision of an asteroid with the earth

• impact event
• earth impact
• asteroid impact

• celestial collision

Cementation

• The permanent disappearance or elimination of a species

• Particles of sediment begin to stick to each other - they are cemented together by clay, or by minerals

• When heat moves from one object to another object through direct touch (moves from high to low)

• A natural process that slowly breaks apart or changes rock-caused by heat, water, wind, living things, and other natural forces

Minerals

• Inorganic substances that are the building blocks that make up rocks

• A series of mountains or hills arranged in a line and connected by high ground

• Stacked-up layers of sedimentary rock

• Openings, or vents where lava, tephra (small rocks), and steam erupt onto the Earth's surface