A | B |
high surface tension | 50 drops of water fit on a penny |
water expands on freezing | frost kills skin/plants |
water boils in a paper cup | thermal conductivity |
salt dissolves in water | universal solvent |
fish do not freeze in winter | water freezes from the top down |
ice floats | ice is less dense than water |
sweating is good | evaporative coolant |
The Atlantic Ocean is cold in June. | high specific heat |
salt | nonpoint from irrigation stunts growth |
toxic substances | point, can cause cancer, from mercury, lead, PCB from factories |
Effects: clouds water, kills fish, non-point | sediment(dirt) |
organic wastes | point, comes from spewage, paper mills, food processers |
acids | point, comes from minning industry, kills fish |
What pollutant causes Disease and is a point source, and caused by human + animal wastes? | Bacteria + Viruses |
Nutrients | non-point, caused by nitrogen from farms + phospurus from detergents, causes excess algae growth and decreased oxygen |
What pollutant is both point and non-point and coats and kills animals, that comes from spills? | oil and grease |
Heat pollution | point, decreases oxygen, caused by industries, cooling processes |
Radioactivity | point, causes cancer, is caused by medical and nuclear waste |
evaporation | sun turns liquid water to water vapor |
Transpiration | plants release water at night (dew) |
Respiration | animals release water when they breathe |
condensation | water vapor forms clouds |
precipatation | water falls to earth, rain, sleet, snow, etc. |
percolation | to ground water, water table |
porosity | the amount of open space between particles |
permiability | the connection of air spaces |
covalent bonds | hold hydrogen together |
hydrogen bonds | holds 2 water molecules to each other |
water boils at.... | 100 degrees celcius |
water freezes at.... | zero degrees celcius |
universal solvent | dissolves stuff |
ice is ____ dense than water | less |
water ______ when it freezes | expands |
thermal conductivity | absorbs heat |
evaporative coolant | as water evaporates, it takes heat with it. |
water has a......surface tension | high |
sticks to itself | cohesive |
sticks to other things | adhesive |
great lakes | Huron,Ontario, Michigan, Erie, Superior |
problems in great lakes | bithotrephies, lamprey, zebra mussels |