1) An __________ is a person who travels and works in space. a) astronaut b) laboratory c) spacecraft 2) Scientists do experiments in a __________. a) astronaut b) laboratory c) spacecraft 3) The __________ carries astronauts to space. a) astronaut b) laboratory c) spacecraft 4) The __________ landed safely after a long journey around Earth. a) astronaut b) laboratory c) spacecraft 5) We use test tubes and microscopes in the school __________. a) astronaut b) laboratory c) spacecraft 6) We use test tubes and microscopes in the school __________. a) astronaut b) laboratory c) spacecraft 7) A __________ is built to travel beyond our planet. a) astronaut b) laboratory c) spacecraft 8) I dream of becoming an __________ one day and exploring the moon. a) astronaut b) laboratory c) spacecraft

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