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5th Grade-Chapter 7 Water on Earth
all the waters of earth
The hydrosphere covers _________ of Earth's surface.
Almost all of the hydrosphere is __________ water.
the largest and deepest ocean
measure of how salty the water is
When rivers meet oceans, the salinity is ___________ than warmer ocean water.
Sodium chloride is known as ___________.
winds & cold, salty water sinking under warmer water
2 causes of ocean currents
Oceans get salt from ___________.
Ocean water near the equator is ____________ than water near the poles.
tuna, salt, magnesium, drinking water
4 examples of ocean resources
rain or snow
Almost all of Earth's fresh water starts as ___________.
rain or melted snow that soaks into the ground
layer of rock and soil that groundwater occupies
top level of groundwater in an aquifer
area from which water drains into a river
artifical lake that forms behind a dam
Antarctica & Greenland
2 locations of much of Earth's ice
glaciers & ice sheets
form when each year's snowfall is greater than the amount that melts
large piece of floating ice broken off a glacier
chlorine & flouride
2 chemicals added to drinking water
water as an invisible gas
Air pressure __________ as you move higher in the atmosphere.
repeated movement of water through the enviroment in different forms
liquid water changes to water vapor
water vapor changes to liquid water
water falls from clouds as rain, snow, sleet or hail
Condensation forms __________.
ice changing into water vapor without first melting
ice crystals formed by frozen water vapor
when plants make sugar during photosynthesis & during respiration
2 examples of water made by living things
form when water vapor changes into tiny water droplets or ice crystals
temperature & air pressure
factors that determine if a cloud is made of water droplets or ice crystals
thin, wispy, high altitude cloud
vertical cloud that causes thunderstorms
mid-altitude cloud that look like small, puffy balls
low-altitude cloud that covers the whole sky
cloud at ground level
form when strong winds blow raindrops back into the freezing air of a cloud
precipitation when ice crystals fall
when rainwater freezes as it lands