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What do you mean by resonant?
A sharp and intense sound is heard when a tuning fork struck against a rubber pad is held over a resonance tube and the length of the air column in the tube is adjusted for a particular value. Explain why.
What is scientific learning?
What is a variable?
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What are two features of variables?
Name three types of variables.
Define independent and dependent variables.
What is “reproducibility”?
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What is a controlled variable?
How many dependent variables are needed in an experiment?