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This question is public and is used in 15 tests.

Type: Open-Ended
Category: Scientific Applications
Grade: Grade 4
Score: 0
Author: naseeb blue star
Last Modified: 2 weeks ago

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  • What happens when you scratch the end of a ruler when placed at another persons ear.
    • They hear the scratch sound get louder as the partner scrathes closer to the ear. It is louder if they scratch harder.