| For an observation to be a scientific law, it must and an object in constant motion tends to be observed repeatedly | Some observations might force scientists to think of new explanations |
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| Any answer to a scientific question is uncertain because people will never know everything about the world around them | Is this a scientific theory or a scientific law? Scientific Laws A rule that describes a pattern in nature is called o scientific law |
Clue: Look at the boxes Explanation Still possible Explanation Modified Explanation discarded New possible explanation Modifying Explanations Controlled Experiment This student is adding different types of gas to each of the experimental test tubes.
23| Sometimes, the answers to scientific questions ore inferred | All objects exert gravitational force |
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| An inference is a conclusion formed from available information or evidence | He will not add any gas to the control test tube |
Science can answer a question only with the information available at the time.
| Scientists try to keep all other variables constant-or unchanged | With new knowledge, they might realize that some of the old explanations no longer fit the new information |
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| Clue: Which factor was changed? The variable that is being measured is called the dependent variable | An observation is using you senses and An inference is a conclusion formed from available |
Each of Sir Newton's laws describe the motion of an object.
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