Answer:
Length of term: until death, retirement, or being impeached.
Are they elected or appointed?: Appointed by the president and confirmed by the Senate.
Age requirement: At least 30 years old.
Citizenship requirement: U.S. citizenship
Two powers of this branch of government:
Judicial: The judicial branch is in charge of deciding the meaning of laws, how to apply them to real situations, and whether a law breaks the rules of the Constitution.
Supreme: The best-known power of the Supreme Court is judicial review, or the ability of the Court to declare a Legislative or Executive act in violation of the Constitution, is not found within the text of the Constitution itself.