Ana is planning to build an electrical circuit. Before building it, she writes the statement, "If four batteries are connected to a light bulb, then the light bulb will burn longer than if two batteries are connected because more batteries provide more energy."Which best explains why Ana's statement is a hypothesis rather than a theory?
Answer
A
It is based on prior knowledge, but it has not been widely tested on her circuit.
B
It has been widely tested on her circuit, but it is not a factual statement.
C
It is a factual statement, but it is not based on prior knowledge
D
It is a testable statement, but it cannot be replaced in the future.
Explanation
A hypothesis is a testable prediction that can be based on prior knowledge, but it has not yet been extensively tested. Ana predicts that four batteries will make the bulb burn longer because they provide more energy; she would need to test this with her circuit. Choice A best describes that status. A theory, by contrast, is supported by extensive testing and evidence.
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