Mood jewelry is made from either a clear capsule filled with thermo chromic liquid crystal, or a thin sheet of liquid crystal paint that is sealed underneath a plastic or glass dome. Mood jewelry change colors by the same principle as a liquid crystal thermometer.
A senatorial candidate must be 30 years old to qualify for election. Candidates for the House of Representatives must be 25 years old to qualify for election. Presidential and vice-presidential candidates must be 35 years old. A senatorial candidate must be 30 years old to qualify for election.
Quick Answer. In the United States as of 2014, candidates for Congress must be 25 years old to run for a seat in the House of Representatives and 30 years old to run for a seat in the Senate. Other countries have other age minimums for their respective legislative bodies.