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14 Cards in this Set
- Front
- Back
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Why do scientists us tools, such as thermometers and rulers, when they make observations ? |
Tools measure observations and make them more accurate. |
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How are scientists like detectives? |
Scientist use skills and tools to find clues that are pieced together to produce a solution to a problem. |
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What are some skills used in science ? |
Observation, measurement, making inferences, comparing and contrasting, graphing, classifying, predicting, and sequencing. |
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Technology |
Is the application of science to make products or tools that people can use. |
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Why do scientists use models? |
Models save time and money by testing ideas that are too large, small, or time consuming to do. |
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What is a hypothesis? |
A prediction or statement that can be tested. |
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The three steps scientists might use when designing an experiment to solve a problem. |
Recognize the problem-Form a hypothesis Test hypothesis-Anylaze data Draw conclusion |
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Scientific methods |
Are approaches taken to try to solve a problem. |
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Model |
is a mathematical equation or physical object that is used to think about things that happen too slowly, too quickly, or are too big or small to abserve directly. |
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Independent variable |
The variable that is changed. |
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Dependent variable |
Is the factor being measured. |
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Constants |
The variables that stay the same. |
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Control |
Is a sample that is treated exactly like the other experimental groups except that the independent varible is not applied to it. |
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Science |
Way of thinking to solve a problem. |
