Share hydrosphere, nitrogen cycle and force and friction
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Name the three main properties of water
1. a powerful solvent 2. absorbs heat 3. cohesion and adhesion
what is meant by anomalous dilation?
when water freezes, it dilates or increases in volume
Name the three ways ocean water moves.
1. waves 2. ocean currents 3. tides
name the special properties of sea water
1. it is salty 2. contains dissolved gases 3. temperature of salt water varies with depth
Complete the sentence: ______________ contains much less salt than sea water
freshwater
_______________________- is water taht i located beneath the ground surface
groundwater
__________________ are accumulation of snow on mountatin tops
glaciers
____________ are water courses fed by rain
streams or torrents
____________ is liquid water changing to gas
evaporation
______________ is when water vapor changes into liquid, forming clouds and dew
condensation
_________________ is when surface water filters into the ground
infiltration
_______________ is when surface water moves across the land forms rivers and streams
surface runoff
How many liters of water does a human body loses in a day?
1.5 to 2 liters
name the three main uses of water
agriculture, industry, domestic use
How can we save water?
1. Take a shower not a bath 2. Turn off taps when brushing teeth or soaping body 3. Load dishwashers and washing machines completely before use.
What pollutes water?
waste water from industries and farmlands, 2. sewage water 3. oil slicks 4. agricultutal fertilizers and pesticides
