Properties
This property of water allows a paperclip to float on the surface of water.
What is cohesion at the surface called surface tension?
This is the number of hydrogen atoms in a water molecule
What is two?
How do we calculate the density of an object or substance?
What is divide it mass by its volume?
Daily Double: Which of the following areas in the ocean is likely to have the lowest salinity?
a. a warm, tropical sea
b. deep parts of the Pacific Ocean
c. a bay at the mouth of a big river
b. the cold Arctic Ocean
What is c?
Describe the salinity highest to lowest of the following: distilled water, salt water brackish water freshwater
What is highest- salt water, then brackish, freshwater then distilled water?
This property of water demonstrates the attraction of one water molecule to another.
What is cohesion?
This is the number of oxygen atoms in a water molecule.
What is 1?
Oils are hydrocarbons that share electrons symmetrically, which means that oil is held together by what type of bond?
What is a non-polar bonds?
Tightness across the surface of water that is caused by polar molecules pulling on each other is called?
What is a surface tension?
Which of the following is not a major source of salt in the ocean? runoff from the land, volcanoes, particles from the atmosphere, or urination by animals
What is urination by animals ?
Daily Double:
When salts dissolve in water they allow water to carry an electrical charge, a property known as
What is conductivity?
This is the chemical formula for water.
What is H20?
What is a solvent and what is a solute? give an example of each
Solvent will dissolve a substance - Water
Solute is substance being dissolved - salt
The compound, sodium chlorine, is held together by what type of bond?
What is ionic bond?
Water molecules are held together by ___________ bonds, while ___________ bonds hold the atoms in salts together.
What polar covalent, ionic?
Water molecules tend to "stick" together because of positively and negatively charged "ends" of the molecule. So, we say it is what kind of molecule?
What is a polar molecule?
As temperature increases, what happens to the salinity of water?
What is salinity of water increases as temperature increases/
When you add so much solute that no more dissolves, you have a
What is a saturated solution?
This is how density is labeled.
What is g/ml or g/cm3?
Daily Double:
Where does most of the salt in the ocean come from?
What is runoff from land?
This property describes tightness across the surface of water, caused by the polar molecules pulling on one another.
What is surface tension?
Name two things about estuaries that is important.
1. Protect coastlines from erosion. 2. Marine animals use estuaries as nursery for their young. 3. Estuaries have brackish water. 4. Pollutants are filtered from the water in an estuary
Osmoregulation refers to
What is the way individual cells control the balance of water?
Daily Double
Estuaries protect coastlines by preventing _______
What is erosion?
How is salt removed from ocean?
What is process of sedimentation? (making sediments)