Show:
Elements
Periodic Table
Earth's Waters
Water Pollution and Policies
100
Iron's atomic symbol
What is Fe
100
a horizontal set of elements
What is a Period
100
the % of freshwater on earth
What is 3%
100
A water act that protects the quality of surface water
What is the Clean Water Act of 1972
200
the 17th family on the periodic table
What is Halogens
200
The amount of families in the periodic table
What is 18
200
the most common form of freshwater
What is ice
200
a water act that forbids dumping waste that is harmful to humans and/or the environment
What is the Marine Act of 1972
300
the most stable family on the periodic table
What is family 18
300
Element to the right of the staircase are
What is nonmetals
300
the % of earth that is covered in water
What is 71%
300
an act that requires tankers to have a double hull by 2015
What is the 1990 Oil Pollution Act
400
Gold's atomic number
What is 79
400
these two scientists helped create the periodic table
Who is Bohr and Mendeleev
400
When water turns from gas to a liquid
What is condensation
400
Pollution that can be tracked to a specific place
What is point-source pollution
500
the two elements that are liquid at room temperature
What is Mercury and Bromine
500
the only nonmetal on the left side of the staircase
What is Hydrogen
500
When the nutrients in the lake are renewed
What is lake turnover
500
DO levels are highest during this season
When is winter