What clock runs on sand but never needs batteries? - Answer & Hint

What clock runs on sand but never needs batteries?

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Hint: It measures time by falling grains.

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The answer is

An hourglass.

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An hourglass measures time as sand falls from one chamber to the other.

#what-am-i Type: What Am I?Topic: Time#time#objects#easy

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What map changes every day even when it stays on the same wall?

Type:What Am I?SchoolTime

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The answer is

A calendar.

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What bag gets smaller every time you use it?

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The answer is

A tea bag.

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What bell can wake you up but has no metal?

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The answer is

A phone alarm.