How Thick Is the Average Human Skull?
How Thick Is the Average Human Skull? The thickness of the average human skull, or that part of the skull called the cranium that encloses t
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How Salty Is the Ocean?
How Salty Is the Ocean? In general, the salinity (saltiness) of the ocean is 3.5 percent by volume. A gallon of seawater contains about a qu
Tooth Fairy
One of the Bizarre things that happened to me while I was teaching a Grade one class. My favorite student Lilly’s tooth just popped out. She