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29 Cards in this Set
- Front
- Back
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fuels formed by natural processes such as decomposition of buried dead organisms |
fossil fuels |
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what is the result of burning fossil fuels? |
carbon dioxide emissions, which is one of the greenhouse gases that contributes to global warming |
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Name 6 examples of fossil fuels. |
coal, oil, tar sands, natural gas, peat, oil shales |
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What is the difference between a gas, liquid and solid? |
solids have definite shape and volume liquids have definite volume but no definite shape gas has no definite shape or volume |
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What is an independent variable? |
a variable that stands alone and isn't changed by the other variables |
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what is a variable? |
something you are trying to measure in an experiment |
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what is a dependent variable? |
a variable that depends on other factors
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Kinetic energy |
energy an object possesses due to its motion |
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Humboldt Current |
a cold, low-salinity current that flows north along the west coast of South America from the southern tip of Chile to northern Peru |
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The Peru current is also called the ____________ current. |
Humboldt |
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What is the relationship between air temperature and the speed of sound? |
the speed of sound decreases as it gets colder |
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Why does the speed of sound increase as the temperature increases? |
Molecules at higher temperatures have more energy and vibrate faster. Therefore, sound waves travel more quickly. |
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The gene pool |
the set of all genes in any population |
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natural selection |
the process by which forms of life which have traits that allow them to adapt better will survive and reproduce in greater numbers |
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Who is responsible for the concept of "natural selection"? |
Charles Darwin |
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Volume |
the space that a shape contains or substance occupies |
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How many known moons does Jupiter have? |
63 |
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Name Jupiter's 4 largest moons. |
lo, Europa, Ganymede, and Callisto |
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Who discovered Jupiter's four moons (also called Galilean satellites)? |
Galileo Galilei (1610) |
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the goal to reduce the amount of energy required to provide products and services |
energy efficiency |
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Name the five most abundant elements in the Earth's crust in order of their abundance. |
Oxygen (46.1%), Silicon (28.2%), Aluminum (8.23%), Iron (5.63%), Calcium (4.15%), Sodium (2.36%), Magnesium (2.33%), Potassium (2.09%), Titanium (0.565%), and Hydrogen (0.14%) |
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Refraction |
the bending of the path of a light wave as it passes across the boundary separating two media |
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What causes refraction? |
change in speed of the light wave |
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the offspring of parents with similar genetic makeup |
purebred |
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the result of a cross between two different purebred organisms |
HYBRID |
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an oxidation reaction and reduction reaction occurring at the same time |
a redox reaction |
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lower part of the brain stem that regulates breathing, swallowing, and heart rate |
medulla oblongata |
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negatively charged subatomic particle |
electron |
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main ore of iron; dark colored mineral |
hematite |
