Jeopardy. Environ-ment. Skills & Processes. Natural Resources. Weathering. Rocks. Q $100. Q $100. Q $100. Q $100. Q $100. Q $200. Q $200. Q $200. Q $200. Q $200. Q $300. Q $300. Q $300. Q $300. Q $300. Q $400. Q $400. Q $400. Q $400. Q $400. Q $500. Q $500. Q $500.
Coal, Natural Gas, and Oil
What are the three nonrenewable resources?
How does an increasing population affect energy resources?
More people will cause more pollution which will increase global warming and decrease the availability of fossil fuels.
If we decrease our use of fossil fuels, what must happen with our use of renewable resources?
We must increase our use of renewable resources
Which graph illustrates the relationship between an increasing population and our affect on global warming?
What is a negative of using solar power as a main source of electricity?
It can not be used if it is dark or cloudy
How might deforestation affect a forest ecosystem?
Cutting down trees would cause there to be less habitat for certain animals.
This might lead to a species dying out.
Why do waterman and farmers often disagree on the use of fertilizers?
Farmers would like to use fertilizers to better their crops. Watermen dislike the nutrient pollution does to the Bay.
How does an increasing human population affect rainforests?
With an increasing population more people will need land for houses and stores. Therefore rainforests will need to be cut down thus decreasing the amount of oxygen they release into the air.
A developer would like to build a new shopping center. The Chesapeake bay Foundation says this is bad for the watershed. What is the most likely reason that they oppose this shopping center?
The shopping mall would add more parking lots which would cause more chemicals to reach the Bay as a result of runoff.
When bacteria and microorganisms are present in the Bay, this can affect other industries. Explain how this might happen.
If the bacteria infects fish or other animals this could affect the number of available wildlife for watermen to catch and sell. Could also affect out travel industry in Maryland.
In which of the three rock groups would you place this rock?
What characteristics might help you identify a metamorphic rock?
May have layers that appear to be formed as a result of great heat and pressure
Igneous rocks can be classified as intrusive or extrusive. Explain the difference in formation and appearance.
Intrusive form within the earth and because of their slow cooling rate would have formed larger crystals. Extrusive rocks are formed on or near Earth’s surface and cool at a faster rate thus having smaller crystals.
Below is a picture of a foliated rock. To which of the three groups does it belong and how are these rocks formed?
This is a metamorphic rock. It is foliated because it was formed through great heat and pressure within the Earth. The pressure causes the minerals that make up the rock to line up in bands.
Describe the processes that form sedimentary rock and how theses processes affect the rocks appearance.
Sedimentary rocks are weathered and eroded. Then they are deposited in layers, compacted and cemented together. Sedimentary rocks may have bits or fragments of other rocks, fossils, shells that help us to identify them as sedimentary.
Name the two types of weathering.
Chemical and mechanical
Give an example of chemical weathering.
Possible: Statue of Liberty
Bike rusting, groundwater in caves
How is mechanical weathering different from chemical weathering?
Mechanical weathering changes size, shape or state but not composition.
Name one factor that could increase the rate of chemical weathering.
Increase in rainfall
What agent of mechanical weathering is most responsible for creating potholes? Explain.
Temperature change, the alternate freezing (contracting) and thawing (expanding) of concrete or asphalt leads to cracks and potholes.
Students want to test how time affects the rate of mechanical weathering on rocks. Each student in the class shakes a jar of rocks for 30 seconds and records the mass lost. Then repeats for 60 seconds and 90 seconds. What might be an error in this experiment?
There are actually two variables, time and strength of shake.
Why is it important for scientists to repeat experiments?
Scientists repeat experiments so that they can make sure that they have accurate data that is valid and reliable.
Students are conducting a lab on chemical weathering by adding different amounts of acid to a limestone rock and measuring how much mass the rock loses. What is the independent variable?
Amount of acid
In the Crystal Lab we grew crystals in hot and cold temperatures, what would be a good control for this experiment?
Crystals grown in room temperature
What might be a drawback to having a local farmer conduct an experiment on the water quality in the Chesapeake Bay?
The farmer may have a bias because their livelihood depends on the Chesapeake Bay.
In our Mechanical weathering lab, what was the independent, dependent variable and control in our experiment. What did the experiment show?
The independent variable was the amount of shaking, dependent variable was mass of rocks, control was not shaken. The conclusion was the more a rock is exposed to weathering the more mass it will lose.