結果 : what type of science is light and sound
2:12

Light and Sound for Children| Science for Kids | Kids Academy

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What is Sound? | Science Experiments for Kindergarten | Kids Academy

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What is Sound? | Physics for Kids | SciShow Kids

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Sound and vibration: do you hear what I hear? | MightyOwl Science | 1st Grade

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How Sound Travels in Space: The Science Behind Cosmic Silence

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Sound Experiments for Kids | Science for Kids | Kids Academy

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Grade 4 - Light and Sound Part 1

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Light waves vs Sound waves | Difference Between Light And Sound Waves | Physics | The Science Stuff

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[TEACHER VIBAL] Science Fridays: Light, Sound, and Heat

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