5 FACTS ABOUT SOUND
(1) Dogs can hear sound at a higher frequency than humans, allowing them to hear noises that we can’t.
(2) Sound is used by many animals to detect danger, warning them of possible attacks before they happen.
(3) Sound can’t travel through a vacuum (an area empty of matter).
(4) When traveling through water, sound moves around four times faster than when it travels through air.
(5) Sound travels faster than light. Though this still remain a controversial issue among Scientists.
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