No they are not capitalized.
When referring to school subjects, only those that are languages should be capitalized.
At the beginning of every new sentence or a full stop.
In this case, "science class" is not typically capitalized as it is a general reference to a subject. However, if you specify a specific class title like "Biology class," then it would be capitalized as it is a proper noun.
Yes, it is the proper name of a branch of science.
Yes, "PC" should be capitalized in a sentence.
No, "line manager" is not capitalized when used in a sentence unless it begins the sentence.
Biology should not be capitalized unless it's starting a sentence because it's not proper.
At the beginning of every new sentence or a full stop.
It should only be capitalized if it forms part of a title (including class names)
In this case, "science class" is not typically capitalized as it is a general reference to a subject. However, if you specify a specific class title like "Biology class," then it would be capitalized as it is a proper noun.
Dodgeball is capitalized if it starts the sentence. But if dodgeball is used in the middle of a sentence it is not capitalized.
They are not proper nouns. They would not be capitalized in a sentence.
Yes, it is the proper name of a branch of science.
No, the word forecast should not be capitalized in a sentence.
Yes, "PC" should be capitalized in a sentence.
No, "personnel" is not capitalized when used in a sentence unless it is at the beginning of the sentence or part of a title.
No, "line manager" is not capitalized when used in a sentence unless it begins the sentence.
Yes