1) What is Gravity? a) • A force that exists everywhere in the universe b) Morning: Long shadows facing west c) • Always face away from the light source d) The Sun isn't moving across the sky; Earth is rotating! 2) Gravity holds _____, ____ and ______ in orbits a) people, buildings b) planets, other objects c) dogs, cats d) exoplanets 3) The moon's gravity causes a) sinking sun b) sand to collect c) rising moon d) ocean tides 4) Gravity depends on the _________ and ____________ distance of the two object a) time, reason b) space, light c) diamond, topple d) size and difference 5) What keeps the moon in orbit around the earth? a) gravity b) tides c) laser beams d) rocks 6) Shadows are the a) enemy b) Part of the space system c) Dark areas that result when light is blocked d) useless in science e) nothing f) everything 7) Shadows __________ as the day progresses (goes on). a) stay the same b) change 8) Shadows get longer toward the a) south b) east c) north d) west 9) Morning shadows are a) reversed b) shadows that face above from the light sources c) long and they face west d) not real 10) Shadows are at the thier ____ at noon, because the sun is directly over head. a) shortest b) longest c) oldest d) earliest e) irrational f) illegal 11) Shadows always face ____________ from the light source a) toward b) away c) behind d) next to 12) Shadows get long again after noon and they lengthen toward the  __________. a) north b) past c) future d) east 13) Earth rotates on its ________, causing different parts of earth's __________ to be in daylight or in darkness. a) meteor, shooting star b) axis, surface c) rotator, body d) orbit, shadow 14) When light falls on a sphere, exactly _________ is illuminated (lit up) and the other half is in _________ a) one third, space b) oval, lightness c) tilt, axis d) half, shadow/darkness 15) The tilt of the earth on its axis and the ______________ around cause the seasons. a) nadir b) zenith c) revolving d) revolution 16) The sun isn't moving across the sky, the _____ is moving around the sun. a) Earth b) Pluto c) Jupiter d) sun 17) Our solar system includes a) The sun, and the objects that orbit it b) The sun, and the objects that orbit it, including Earth, the Moon, eight other planets , their satellites and smaller objects c) The sun, and the objects that orbit it, including Earth, the Moon, seven other planets , their satellites and smaller objects d) The orbit of the trajectory 18) The moon is much _________________ than Earth. a) larger b) smaller c) older d) closer 19) The moon a) makes it's own light b) doesn't make it's own light 20) We see the sun's ________________ on the moon a) reflection b) refraction c) traction d) inverse 21) The sun is _________ times larger than Earth in diamete a) 100 b) -50 c) 2 d) 7 22) The sun is one of _____________ of stars in the Milky Way Galaxy and is ________ to the Earth a) thousands, loudest b) millions, furthest c) hundreds, oldest d) billions, closest 23) The sun provides light, heat and _____ making life on Earth possible a) money b) gravity c) shooting stars d) sound waves 24) Stars can differ based on size, _______________, age and distance a) substance b) design c) temperature d) size 25) What is a comet? a) ice, gas and dirt that orbits the sun b) ice, tides and heat that orbit the sun c) nice, gas and soil that orbit the sun d) light, sound and waves that orbit the sun 26) stars grouped together by humans based on thier position in the sky are called a) considerations b) constellations c) applications d) identifications 27) All constellations are the same distance from earth a) true b) false 28) Constellations rise in the _______ and travel across the sky to the _______ as Earth rotates. a) northwest b) north, south c) southeast d) east, west 29) Different stars are always present at different times of the year. a) true b) false

Space Systems Study Game

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