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At least for elementary grade students
Questions in Advanced Chemistry are only given in Fahrenheit, when they want to annoy the student, and forced them to convert into the SI unit.
There's a forumla:
We use the formula to convert Celsius to Fahrenheit as °F = (9/5) °C+32.
Examples:
38 Celsius to Fahrenheit: °F = (9/5)(38)+32 = 100.4°F.
20 Celsius to Fahrenheit: °F = (9/5)(20)+32 = 68°F.
We were taught a speed math trick - a fast way to do a, slightly inaccurate calculation.
In the formula, ( in your mind ) round the 9 up to 10,
so that way you have 10/5 ( which is = 2 ),
so then you have F = 2 x C + 32 =
the bigger the number to convert, the greater the inaccuracy.
So supposedly it's easier to sometimes work on the Kelvin scale. If you were working in outer space, I'd imagine that they use the Kelvin scale on the orbital platform, but I dunno.
Maybe NASA has a protocol for on the ISS etc ( international space station ).
The UK had probably the most ancient weighing system, where people would measure their body weight in stones.
Science is always in metric in the UK.
I know what it's like to be in a country that uses mixed units - annoying.
Map of countries that use Metric versus Imperial:
https://www.reddit.com/r/MapPorn/comments/gnymvy/where_in_the_world_do_people_use_metric_and/
The States had one of the most costly errors when they built a space thing... I'll find the story because it's funny...
"When NASA Lost a Spacecraft Due to a Metric Math Mistake"
https://www.simscale.com/blog/nasa-mars-climate-orbiter-metric/
AI overview:
The stone (st) is a unit of measurement in the United Kingdom and Ireland that is equal to 14 pounds avoirdupois or approximately 6.35 kilograms. It is commonly used to measure body weight.
While the UK has adopted the metric system, imperial units are still widely used in the public. They are also still legal for certain measurements, such as: draught beer and cider, precious metals (by troy ounce), and milk in returnable containers.
In non-official settings, such as American-British boxing matches and horse racing, weights are often stated in both pounds and stones.
"The name "stone" derives from the historical use of stones for weights, a practice that dates back into antiquity."
https://en.wikipedia.org/wiki/Stone_(unit)
They're still in mph, but body weight is now commonly done in both kilo and stone. In schools, though, they don't really teach any imperial measurements, and while people still talk about "a pint", it's really only in pubs. For the most part, even beer and cider is sold in ml volumes.
Learn it. I never used kelvin before and can read it now. Where is the problem?