When it is the first word of the sentence or when it is part of a proper name.
I like thermal underwear.
I work for Thermal Industries, Inc.
Radiation is a kind of thermal energy that can travel through space. The only word properly capitalized is 'Radiation' because it is the first word in the sentence. The noun 'space' is a common noun and should not be capitalized.
No, the word forecast should not be capitalized in a sentence.
Yes it should be capitalized.
Have should be capitalized if it is the beginning of a sentence. Summer should not be capitalized.
No it shouldn't be capitalized.
In general, no, "transition process" should not be capitalized in a sentence.
Radiation is a kind of thermal energy that can travel through space. The only word properly capitalized is 'Radiation' because it is the first word in the sentence. The noun 'space' is a common noun and should not be capitalized.
No, the word forecast should not be capitalized in a sentence.
Yes, "PC" should be capitalized in a sentence.
Yes it should be capitalized.
No, "secondary students" should not be capitalized in the middle of a sentence unless it is a proper noun or at the beginning of a sentence.
No, the word "fifteen" should not be capitalized in a date within a sentence unless it is the first word of the sentence.
Mammogram should not be capitalized unless it's the first word in the sentence.
Have should be capitalized if it is the beginning of a sentence. Summer should not be capitalized.
No, "methamphetamine" should not be capitalized unless it is at the beginning of a sentence.
Since 'felon' is a common noun, it is only capitalized if it is at the start of a sentence.
No it shouldn't be capitalized.