Hi Aga! The word "scissors" is plural and in this sentence, you need to use the article "the". The scissors are blue. It's similar to the word "pants". The pants are blue.

Who knew that scissors would generate so much discussion! I've never heard or used "scissors" as the singular "scissor". I would say "Hand me the scissors", "Do you have any scissors I could borrow?", "You'll need scissors, glue, and a pencil.", "Where are the scissors?" Unless it's regional within the US, you'll always hear "scissors" as a plural and it's not as common to hear people say "a pair of scissors" in a spoken conversation. I'd be interested to know if it's regional - it's not something that I've ever noticed when traveling around the US but scissors are also not a common topic of conversation while traveling!

A scissor is a single blade, but the word is archaic. Thus pair of scissors literally means two scissors, hinged together, and each controlled by a different finger. Now the tricky point: at least in informal American speech, you will hear people say "Hand me the scissor" when strictly speaking they mean "Hand me the (pair of) scissors." As I said, the single scissor sounds archaic, so the singular has come to mean the plural. And vice-versa, for some speakers, "scissors" has become, well, an irregular singular noun. To answer exactly the question you asked, namely --- Which one sounds more natural? I think it would vary with dialect. That said, a grammarian would only accept "(The) scissors are blue" or "The scissor is blue."

Both scisors and pant are technically referred to as a pair of pants, or a apir of scissors. This pair of scissors is blue. This pair of pants is blue. These scissors are blue. These pants are blue.

en español suena mejor en plural:(las tijeras son azules) singular seria (esta tijera es azul) (la tijera es azul)para mi suena mal