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Welcome to this "Light and sound 3rd-grade science quiz". Sound is a mechanical wave, whereas light is an electromagnetic one. Light does not need a medium to travel to. Sound does, but they are both waves, but only...
Questions: 10 | Attempts: 6765 | Last updated: Mar 22, 2025
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Sample Question 1How is a shadow formed?
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Sample Question 2Most light energy on Earth comes from
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Sample Question 3Sunlight energy can heat up everything EXCEPT: