Science study guide
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| system | A group of related parts that work together | mass | The amount of matter in an object
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| troubleshooting | The process of analyzing a design problem weather occurs | volume | The amount of space an object takes up
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| prototype | A working model used to test a design | conversion factor | A conversion factor is an equation that shows how two units of measurement are related
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| risk | benefit analysis-The process of evaluating the possible problems of a technology compared to the expected advantage | variable | A factor that can change in an experiment
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| metric system | A system of measurement based on the number 10 | data | Facts figures and other evidence gathered through observations
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| hypothesis | A possible explanation for set of observations or answer to scientific questions most be testable | pollution | Harmful substances in the air water or soil
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| environmental science | The study of natural processes that occur in the environment and how humans can affect them | renewable resource | A resource that is either always available or naturally replaced in relatively
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| atmosphere | layer of gases that surrounds Earth | nonrenewable resource | A natural resource that is not replaced in a useful time frame
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| ozone | Oxygen gas, O2, is made up of 2 Oxygen atoms. Ozone, O3, is made up of 3 Oxygen atoms. "The ozone layer" refers to the ozone within the stratosphere, where over 90% of the earth's ozone resides. | barometer | An instrument used to measure changes in air pressure
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| ozone layer | The layer of the atmosphere that contains a higher concentration of of ozone then the rest of the atmosphere | greenhouse effect | The process by which heat is trapped in the atmosphere by water vapor, carbon dioxide, methane and other gases that form a “blanket” around Earth
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| drought | A long period of scarce rainfall | anemometer | An instrument used measure wind speed
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| Coriolis effect | The change that earth’s rotation causes in motion of objects and explains how winds curve | psychrometer | An instrument used to measure relative humidity consistion of a wet-bulb thermometer and dry-bulb thermometer
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| 6 Steps of the Technology Design | 1.Information Gathering 2. Planning 3.Design 4.Development 5.Testing and Delivery 6.Maintenance | SI Units for the following | mass- Kilograms
2.temperature-degree
3.length- meter
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| What is the goal of technology? | to make it easier to access data | What are the two most abundant gases in our atmosphere? | Nitrogen and oxygen are the most abundant in the atmosphere.
78.08% Nitrogen, 20.95%Oxygen,
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| Why is the atmosphere important to us? | The atmosphere is important for two main reasons. It is the air that you breathe so, no atmosphere, no breathing. The other reason is it protects you by burning up the meteoroids that could hit earth. | In which layer of the atmosphere does our weather occur? | troposphere
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| In which layer of the atmosphere is the ozone layer? | stratosphere | What does the ozone layer protect us from? | The ozone layer protects us from the sun's powerful rays.
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| What causes wind? | The pressure gradient force, which arises from the uneven heating of earth's surface | horizontal axis | A coordinate system in which the coordinates of a point are its distances from a set of perpendicular lines that intersect at an origin, such as two lines in a plane or three in space
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| vertical axis | The vertical line near the center of gravity of a craft, perpendicular to both the longitudinal and lateral axes, around which it yaws. |
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| obsolete | No longer in use | density | The amount of mass of a substance in a given volume
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| patent | A legal document issued by the government that gives an inventor exclusive rights to make use or sell an invention for a limited time | scientific theory | A well-tested explanation for a wide range of observations of experimental results
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