Winter break can be capitalized, or lower case. If, on a calendar, you are writing winter break, then you would put "Winter Break". On anything else, it could be "winter break", "Winter break", or "Winter Break".
Not cover but try to protect from heavy weight of snow as it can break branches.
Ice deflectors were added to the base of each pier to break up ice sheets drifting down the Northumberland Strait during the winter. These structures help prevent the ice from accumulating around the piers and causing damage.
No, because it isnot a propernoun.
Yes, extreme cold can cause trampolines to become brittle and more susceptible to breaking. It's best to store trampolines indoors or in a sheltered area during the winter to avoid damage.
You do not captitalize "science", but you should capitalize when it's in the form of "Science 30".
no
YOU CAPITALIZE THINGS LIKE SPRING, SUMMER, AND WINTER WHEN YOU USE PERSONIFICATION.FOR EXAMPLE, As I was walking down the street, Winter came and blew away my hat.
yes
No, it's not necessary.
The general consensus says "spring break" does not need to be capitalized so the same rules apply to "winter break": it needs no capitalization. Remember, seasons are not capitalized unless they come at the beginning of a sentence. Holidays and months, on the other hand, are considered proper nouns and take a capitalization. "Winter break" is neither a month nor holiday. If "break" were used with a proper noun such as a holiday or month only the proper noun would need capitalization (Christmas break, December break, etc.).
Of course if u capitalize summer,spring,and Fall why don't u capitalize Winter 
There is no winter break in football.
I have a friend that is very restful.
No, "winter festival celebration" should not be capitalized unless it is part of a title or at the beginning of a sentence.
336 hours are in a winter break.
the subject is break winter describes the reak is is the verb the break is doing the action of being
No, except at the beginning of a sentence because it is n ot a proper n ou n.