Chemistry
What is the ultimate source of energy for earth?
The sun
True or False: Sea Level Rise only affects Louisiana, Senegal, and Sierra Leone
False
What is the hydrosphere vs the cryosphere?
Hydro - water
Cryo - ice
How do we collect sea level data now?
Satellites
What is the definition of Chemistry?
The study of all the stuff/matter in the universe
What is the biggest change that has been causing increasing atmospheric temperatures since 1900?
Adding Carbon Dioxide, a greenhouse gas, to the atmosphere through human activity
What is the difference between a mixture and a solution?
Mixture is heterogenous, different things mixed together, like sand. A solution is a homogenous mixture, like sugar dissolved in water.
How did scientists collect sea level data before the 1970s?
Mechanical tide gauges
True or False: Carbon Dioxide makes up most of the atmosphere.
False; it makes up about 0.04%
How is sea level rise different this time from past times?
It is happening much more rapidly
About what percent of all of earth's water exists as solid ice right now?
About 2% (1-3% will be accepted)
How do we know what sea levels were like thousands of years ago? Name one method.
Ice cores, geological data, human clues/artifacts
What is the most abundant molecule in earth's atmosphere?
Nitrogen (N2)
When volcanoes erupt, the environment gets polluted with ash. How does this affect atmospheric temperatures, and what is happening with the energy in this system?
Temperature decreases, ash reflects some sunlight back into space.
Mr. Stants is studying a cell that is 0.00003 m in length. Convert this number to standard notation.
3 x 10 ^ -5
If both Greenland and Antarctica melt, and all that water goes into the oceans, by how many meters will oceans rise? Answer must be within a range of 5m.
6.8m (Greenland) + 76.5m (Antarctica) = 83.3m
78m to 88m will be accepted.
Convert 15km to miles. Show your work.
Given: 5 km = 3 miles
9 miles; must show work