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14 Cards in this Set
- Front
- Back
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What unit represents length? |
Meter |
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What unit represents MASS |
Gram |
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What unit represents Volume |
Liter |
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What unit represents temperature |
Degree Celsius |
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Milli |
1/1000 |
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What unit represents Time |
Seconds |
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Deci |
1/10 |
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Centi |
1/100 |
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Heckto |
10 |
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Kilo |
1000 |
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Theory
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scientific theory summarizes a hypothesis or group of hypotheses that have been supported with repeated testing. A theory is valid as long as there is no evidence to dispute it. Therefore, theories can be disproven.
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Hypothesis
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A hypothesis is an educated guess, based on observation. Usually, a hypothesis can be supported or refuted through experimentation or more observation. A hypothesis can be disproven, but not proven to be true.
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Law
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A law generalizes a body of observations. At the time it is made, no exceptions have been found to a law. Scientific laws explain things, but they do not describe them. One way to tell a law and a theory apart is to ask if the description gives you a means to explain 'why'.
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Fact
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Fact: In science, an observation that has been repeatedly confirmed and for all practical purposes is accepted as “true.” Truth in science, however, is never final and what is accepted as a fact today may be modified or even discarded tomorrow.
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