The Maryland Science Center s more than fun. You can enjoy the three floors of exciting things, watch the larger-than-life play on the 4th floor, and travel to other worlds, to far away stars, on the 5th floor. Don' t just look. You are expected to feel, to turn, to push. Build your own house and earn why t stands or falls. Use computers to work out plans just as famous scientists have done. There s always something new to learn at the Maryland Science Center. Children and group visitors enjoy half price. The excitement of the Maryland Science Center does not end when you leave. Visit the Science Store for a gift you' d like to keep. Electronic jewelry(电子珠宝), games, books, and more — take part of the Science Center home with you. Information Where to call: 24 hour general(常规的) information(410)685-5225 24 hour STARLINE night, sky information (410)S39-STAR Group visitor information (410) 685-2370 Hours: The Maryland Science Center is open 7 days a week(except Thanksgiving Day and Christmas Day) Monday-Friday 10 a. m.-p. m Saturday and Sunday 10a.m.-p.m. Whacan visitors do at the Maryland Science Center?