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In Sync With Systems Spaced Out Systems Vocabulary Cards 5T4U2A01 revolve (revolution) rotate (rotation) orbit axis to move in a circle or ellipse around a center; orbit the spinning of an object on its axis the path one body in space follows as it goes around another body; one complete path around a body a line through the center of an object on which that object turns 1 of 8 In Sync With Systems Spaced Out Systems Vocabulary Cards 5T4U2A01 gravity the force that pulls objects toward each other (gravitational force) satellite an object that orbits a planet atmosphere a mixture of gases that surround a planet 2 of 8 In Sync With Systems Spaced Out Systems Vocabulary Cards 5T4U2A01 phase one of the different ways we see the moon appear in the sky as it orbits Earth a bowl-shaped landform on a planet or moon crater solar about the sun lunar about the moon 3 of 8 In Sync With Systems Spaced Out Systems Vocabulary Cards 5T4U2A01 solar eclipse the partial or total blocking of sunlight on Earth by the moon; this occurs when the Earth passes through a new moon’s shadow moon sun Earth lunar eclipse sun star diameter Earth moon the partial or total blocking of sunlight on the moon by the Earth; this occurs when the full moon passes through Earth’s shadow an object in space that produces its own heat and light the distance across the middle of a circle 4 of 8 In Sync With Systems Spaced Out Systems Vocabulary Cards 5T4U2A01 sunspot dark spots on the sun that are cooler than the rest planet comet asteroid a large body that goes around (orbits) the sun chunk of ice and dust that orbits the sun rocky and metallic objects that orbit the sun that are too small to be considered planets 5 of 8 In Sync With Systems Spaced Out Systems Vocabulary Cards 5T4U2A01 scale model a way to show the relationship between distance on a map and real distance a small object that looks like the real one, but in a smaller size to take in and hold absorb reflect(reflection) when light rays bounce off of an object 6 of 8 In Sync With Systems Spaced Out Systems Vocabulary Cards 5T4U2A01 refract (refraction) convex lens concave lens telescope when light rays bend lens with a thick middle and thin edges; light rays bend towards each other lens with edges thicker than the middle; light rays bend away from each other something used to make far away things look close 7 of 8 In Sync With Systems Spaced Out Systems Vocabulary Cards 5T4U2A01 refracting telescope manned space program a telescope (thing used to make far away things look close) that can see things by bending light through a lens United States using people to explore space 8 of 8