Yes, it is.
It depends. In the sentences, "I attended Walfred Elementary" or "I attended Walfred Elementary School," then it would be capitalized. In the sentence "I attended elementary school," then it would not.
Only if it's part of the name of the school.
When it is used as the name of the school it should be capitalized, otherwise o nly at the begi n ni ng of the se nte nce.
Yes, in the title "Homer High School," the word "School" should be capitalized because it is part of the official name of the institution.
It is capitalized at the beginning of the sentence or when it forms part of the proper noun. Examples: It is the normal school for girls. Mary studies at Philippine Normal College.
Yes, the word "school" should be capitalized when it is part of a proper noun (e.g., Green Valley High School) or at the beginning of a sentence. Otherwise, it should not be capitalized when referring to school in a general sense (e.g., I have to go to school tomorrow).
No, "dental school" is not capitalized unless it is part of a specific proper noun, such as the name of a school like "Harvard School of Dental Medicine."
It is not normally capitalized. You would only do so if it were part of a full name, such as University of Detroit School of Law.
No, "north high school" is not capitalized unless it is part of the school's full name or a proper noun.
No, although it might look nicer if it's being mentioned in bullet-point format. You certainly do have to capitalize the name of your school though.
No they are not capitalized. When referring to school subjects, only those that are languages should be capitalized.
I capitalize it. Bible is usually capitalized anyway.