When their swimming upside down its usually a sign that their dying
The spelling is upside down, which is hyphenated upside-down when used as an adjective.
Thousands of years ago, Uranus was hit by a massive asteroid.
The world doesn't seem up side down to us, even through our retinas, because , your brain works to recognize the image and flips around, sends it to the nerves and lets you see wright side up.
The Constellation of Cassiopea isn't always upside down. Depending on where you are and what season it it, we see the sky in different ways as the Earth continues its orbit around Sol (our sun) Look for Cassiopea 6 months after you see it upside down. It will be right side up.
"Upside down" has three morphemes: up (preposition), side (root word), and down (adverb).
they sleep up side down
No.
Plants do grow better upside down, but first you have to grow them right side up.
You can put it both ways, just not totally upside down vertical or upside down horizontal.
They are all upside down. Mints often rotate the obverse and reverse sides of the coin so they are 180 degrees apart. Each side appears to be upside down to the other side.
The turning of a vessel on its side or upside down
Not upside down