Space Travel & Science VocabularyOnline version Quiz on travel, space and science terms by احمد ماجد محمد محمود 1 Atmosphere is the layer of gases around a planet. Yes No 2 Water supply only refers to the amount of water used for drinking. Yes No 3 Travel on board means to land on a planet's surface. Yes No 4 Astronaut is a person who travels and works in space. Yes No 5 Surface is the interior or bottom layer of something. Yes No 6 Surface is the outside or top layer of something. Yes No 7 Gravity is the force that pulls objects toward the Earth. Yes No 8 Powder is a liquid substance. Yes No 9 Breathe means to take air into and out of your lungs. Yes No 10 A system is a single part that works independently. Yes No
