unit 2 Flashcards
(88 cards)
Earth’s center
Core
The zone that is most of Earth’s mass
Mantle
Liquid rock inside the Earth
Magma
How forces in Earth create land forms
Plate Tectonics
Plates slowly moving
Continental drift
Crust stretches and breaks
Rift Valley
Flattest surface on Earth, found on the ocean floor
Abyssal Plain
Shallow water around the continents
Continental Shelf
Deep valley at plate collisions
Trench
Bends at the surface that are compressed down
Fold
Breaks at the surface and when they move away
Fault
Decay over time
Weathering
Particles of sand, dirt, and mud
Sediment
Movement of material
Erosion
Thick masses of ice
Glacier
Elevated flatland
Plateau
Sediment build up at the base of a mountain
Alluvial Fan
Sediment buildup at the end of a river
Delta
Salt removed from the ocean
Desalinization
Movement of water in the hydrosphere
Hydro-logic Cycle
Small streams at the beginning of a river
Head Waters
When a smaller river flows into a bigger river
Tributary
The area drained by rivers
Watershed
When a river meets an inlet
Estuary