Scientific Method
Virginia Resources
Virginia Regions
Energy
Human Impacts
100
The variable directly controlled and changed by scientists.
What is the independent variable?
100
Dark, solid rock used for electrical production and heating.
What is coal?
100
The region that is closest to the ocean and made up of pieces of rocks (sediments).
What is the coastal plain?
100
Fossil fuels make up over this quarter percentage of the United States' energy (0%, 25%, 50%, 75%)
How much is 75%?
100
Words that begin with "r" that help people reduce dependence upon natural resources.
What are recycling, reducing, and reuse?
200
The variable that changes and is observed.
What is the dependent variable?
200
Small rocks used in construction.
What are gravel and crushed stone?
200
The region that is high up in the mountains, far to the southwest, and has coal and natural gas.
What is the Appalachian Plateau?
200
This mined energy source is the most important in Virginia's economy.
What is coal?
200
How people generate carbon dioxide, a greenhouse gas.
What is burning flammable substances, such as wood or fossil fuels?
300
Things within an experiment kept the same to ensure consistency between trials.
What are constants?
300
Flammable gas, similar to methane, used as a heat source, cooking fuel, and lighting.
What is natural gas?
300
Thin region of alternating mountains and lower areas.
What is the Valley and Ridge?
300
A disadvantage to fossil fuel energy sources.
What is a limited, non-renewable supply?
300
This clean, river-based renewable type of energy that releases little pollution has a primary disadvantage in that it damages river ecosystems.
What is hydroelectric or water?
400
The scientific method step that tests the hypothesis.
What is the experiment?
400
Element used in glass, electronics, and some non-latex rubber.
What is silicon?
400
Very thin mountainous region that appears blue from a distance.
What is the Blue Ridge?
400
The impacts of cloud cover and day lengths on this particular energy source.
What are the limits to solar energy?
400
Chemicals humans release in excess that cause climate change and global warming.
What are methane, carbon dioxide, and water vapor?
500
The format that the hypothesis is written in.
What is "If... then..."?
500
Ingredient used in metallurgy.
What is zirconium?
500
Widest region that continues from rolling hills in the west to flat sediments (pieces of rocks) to the east; underlain by metamorphic rocks.
What is the Piedmont?
500
Energy resource that depends up the fission -- or splitting into smaller atoms for energy.
What is nuclear or uranium?
500
Processes that describes how humans affect the atmosphere through air pollution from industry, transportation, electrical production, and agriculture.
What are climate change and global warming?