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Questions and Answers
What is a hypothesis?
What is a hypothesis?
- A tentative explanation for a set of observations (correct)
- A proven explanation for a set of observations
- A law that states a relationship between phenomena
- A theory that explains a body of facts
How are molecules arranged in a solid state of matter?
How are molecules arranged in a solid state of matter?
- Moving past one another freely
- Separated by large distances compared to the size of the molecules
- Held close together in an orderly fashion with little freedom of motion (correct)
- Close together but not held rigidly in position
What is a physical change?
What is a physical change?
- A change that always alters the composition of a substance
- A change that creates a new substance
- A change that only occurs in gases
- A change that does not alter the composition or identity of a substance (correct)
What is a theory in scientific terms?
What is a theory in scientific terms?
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What is a law in scientific terms?
What is a law in scientific terms?
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