All terms in this list:

chronic: (of illness ) persisting for a long time or constantly recurring

chronicle: a written account of important or historical events in order

chronological: a record of events starting with the earliest and following the order

chronometer: an instrument used to measure time

synchronize: cause to occur or operate at the same time

planetarium: a building in which images of space are projected

aquaruim: a transparent tank of water in which sea creatures are kept

emporium: a large retail store selling a wide variety of goods

assessment: a test or evaluation of the ability of someone

amendment: a minor change in a doccument