Musea is an acceptable form for the plural but museums is used more often.
The museum's exhibit is wonderful.The museum's exhibits are wonderful.Is for singularAre for plural
There is no plural for which
Museum management includes running a museum, handling collections, and meeting customer needs. Museum management is making sure the museum is staffed and secure.
The plural form of potential is potentials.
The plural of synagogue is synagogues.
The plural of museum is museums.
"Musea" is acceptable, and arguably more correct. However... the current, mainstream, usage is: "museums".
Musea was created in 1985.
Museum is singular. Museum's is singular possessive. Museums is plural. Museums' is plural possessive.
The plural form of the noun museum is museums.The plural possessive form is museums'.Example: All of the museums' hours are posted on the main website.
Key finds, especially if they are rare specimen, are not usually themselves put on public display. Rather, casts are made and distributed to researchers and musea around the world, while the fossils themselves are kept secure in laboratoria and archives, in a controlled climate. Casts of Tiktaalik may be found in various natural history musea, such as the Harvard Museum of Natural History.
singular
The singular noun is museum, the singular possessive form is museum's.The plural noun is museums, the plural possessive form is museums'.
The museum's exhibit is wonderful.The museum's exhibits are wonderful.Is for singularAre for plural
The singular noun is museum, the singular possessive form is museum's.The plural noun is museums, the plural possessive form is museums'.
A. Klasens has written: 'Universiteit, universitaire collecties, musea' -- subject(s): Leyden, Leyden. Rijksuniversiteit
In the sentence, "The local museum is extending their hours for the summer."The pronoun is their, a possessive adjective describing the noun 'hours'. The antecedent is the noun 'museum'.The plural pronoun 'their' is used for the singular antecedent 'museum' to represent 'the people in charge of the museum'. It would also be correct to say, "The local museum is extending its hours..."