Properties
This property of water allows a pin 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?
A student is recording the volume of a liquid. What unit of measurement will she use?
What is liters or milliliters? cm3 often is for solids
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?
In the lab, what tools are commonly used to measure mass?
What is a digital scale or triple beam balance?
In the lab, what tools are commonly used to measure volume?
What is a beaker or graduated cylinder?
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 ?
When salts dissolve in water they allow water to carry an electrical charge, a property known as a.conductivity. b.solubility. c.salinity. d.distillation.
What is A?
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
This unit of measurement is used to label mass.
What is grams?
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? a.Salinity of water increases as temperature increases. b.Salinity of water decreases as temperature increases. c.Salinity of water remains the same as temperature increases
What is A?--Salinity of water increases as temperature increases
This is how density is labeled.
What is g/ml or g/cm3?
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?
Volume of a rectangular object is found by
What is the the volume equation where V=LxWxH
How is salt removed from ocean?
What is process of sedimentation? (making sediments)