Glaciers
large masses of moving ice that form on land
What is a glacier?
water that flows over Earth's surface
What is runoff?
water that lies below the surface
What is groundwater?
area of flat land or depression that collect water, but do not form lakes
What is a wetland?
What are pores?
glacier that forms in the mountains
What are alpine glaciers?
body of water that flows within a channel
What is a stream?
2 groundwater "zones" divided by the water table
What are the saturated and unsaturated zones?
3 examples of wetlands
What is a marsh, bog, or swamp?
forms where the water table rises to Earth's surface
What is a spring?
glacier that spreads over land in all directions
What is an ice sheet?
an area of land that drains runoff into a particular stream, lake, ocean, or other body of water
What is a watershed?
measure of rock's ability to hold water
What is porosity?
mostly contains grasses
What is a marsh?
What is the Antarctic Ice Sheet?
forms when a glacier flows into the ocean
What is an ice shelf?
Define estuary
What is a body of water where saltwater and freshwater mix?
the measure of water's ability to flow through rock and sediment
What is permeability?
mostly contains trees
What is a swamp?
area of rapidly changing temperature between warm and cold layers of a lake
What is the thermocline?
reason why scientists study ice cores
What is to find out how levels of atmospheric CO2 have changed over time?
2 ways a lake basin can be formed
What is erosion, landslides, movement of Earth's crust, or collapse of volcanic cones?
an area of permeable sediment and rock that holds significant amounts of water
What is an aquifer?
mostly contains mosses, flowers, and other plants
What is a bog?
forms where ground collapses above aquifers that are drained too quickly