Thursday, July 19, 2007

Charcoal Grill and July at the Lake

Read an article about how to have a safe summer cookout. Ground beef should have an internal temperature of 160 degrees F. Ok, since this is a science teacher blog, what temperature is 160 degrees F in C? No cheating, do not copy and past 160 degrees F in Google and key in the word convert. Get out your slide rule and make the conversion. Oh, too young to even know what that is, too bad.

A way that you will never forget just remember that 0'C = 32'F


0'C + 1'C = 32'F + 1.8'F = 33.8'F

0'C + 2'C = 32'F + 2(1.8)'F = 35.6'F

0'C + 3'C = 32'F + 3(1.8)'F = 37.4'F

and so on.

If you want to change take 23'C into 'F

0'C + 23'C = 32'F + 23(1.8)'F = 73.4'F

thus the formula to convert 'C to 'F is as following

x'C = 32'F + x(1.8)'F

Let us work back

0'C + x'C = 32'F + x(1.8)'F = 73.4'F

do it your self and find the value of x

you will get another formula that converts 'F to 'C

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