Yes, "Book Fair" should be capitalized as it is a proper noun.
The word evolution does not need to be capitalized.
No, coral does not need to be capitalized.
yes, it should be capitalized
No.
No, circa does not need to be capitalized.
No, it shouldn't be capitalized.
No, it doesn't need to be capitalized.
Yes, "Penguin" should be capitalized when referring to the animal or the book publishing company.
No, kinetic energy doesn't need to be capitalized.
Yes, book names are typically capitalized. The first word, last word, and all other important words in the title should be capitalized. However, conjunctions, articles, and prepositions are usually not capitalized unless they are the first word of the title.
It is not necessary to capitalize 'you' in a book title unless it is the first word of the title. The capitalization rules for book titles typically require the first word and proper nouns to be capitalized.