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Light changes direction when it passes from water into air because its speed changes. That shift in direction alters where the underwater portion of a straw appears to be.
2d
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Light changes direction when it passes from water into air because its speed changes. That shift in direction alters where the underwater portion of a straw appears to be.
2d
Light changes direction when it passes from water into air because its speed changes. That shift in direction alters where the underwater portion of a straw appears to be.
2d
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