76 Multiple choice questions

Definition: A break in Earth's crust where slabs of rock slip past each other. What is this called?

• Gravity

• Joint

• Fault

• Mantle

Definition: A molten mixture of rock-forming substances, gases, and water from the mantle.

• Lava

• Crust

• Gravity

• Magma

Definition: One-half of the Moon appears to be illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is increasing.

• 3rd/last Quarter

• Last Quarter

• Third Quarter

• First Quarter

Definition: The soft layer of the mantle on which the lithosphere floats.

• Asthenosphere

• Solstice

• Lithosphere

• Mantle

Definition: A major belt of volcanoes that rims the Pacific Ocean.

• Ring of Fire

• Ring of Lava

• Hot Spot

• Last Quarter

Definition: A series of processes on the surface and inside Earth that slowly changes rocks from one kind to another.

• Water Cycle

• Revolution

• Rock Cycle

• Carbon Cycle

Definition: The process by which molten material adds new oceanic crust to the ocean floor.

• Waxing Crescent

• Sea-Floor Spreading

• Cementation

• Waxing Gibbous

Definition: The transfer of nitrogen from the atmosphere to the soil, to living organisms, and back to the atmosphere.

• Oxygen Cycle

• Nitrogen Cycle

• Phosphorus Cycle

• Carbon Cycle

Definition: A deep valley that forms where two plates move apart.

• Mountain

• Rift Valley

• Mid-Ocean Ridge

• Waning Crescent

Definition: The movement of an object around another object.

• A) Erosion

• B) Precipitation

• C) Comet

• D) Revolution