1) The imaginary line running through the center of Earth. a) axis b) constellation c) moon d) orbit 2) The star at the center of our solar system. a) sun b) moon c) orbit d) axis 3) It takes Earth _________ to make one complete rotation on its axis. a) 24 hours b) 365 days c) 28 days d) 24 days 4) It takes Earth _____________ to make one revolution or orbit around the Sun. a) 365 hours b) 365 days c) 28 days d) 24 days 5) A tool used to make distant objects appear larger, brighter, and sharper. a) telescope b) planet c) moon d) microscope 6) What force keeps objects in our solar system orbiting our Sun? a) push b) gravity c) motion d) pull 7) Your mass increases on a large planet with more gravity. a) True b) False 8) What is the difference between weight and mass? a) Weight is the amount of matter in an object, and mass is the gravitational force exerted on an object b) Mass is the amount of matter in an object, and weight is the gravitational force exerted on an object c) Weight is the amount of matter in an object, and mass is the size of an object. d) Weight is the size of an object, and mass is the amount of matter in an object 9) As the distance between two objects in space increases the gravity will _______________ a) increase b) decrease c) stay the same 10) Which model has greater gravitational attraction (if any) a) Model A b) Model B c) Both Model A and Model B (same gravity) 11) Which model has the greater gravitational attraction? a) Model 1 b) Model 2 c) Neither: there is not gravitational attraction between the two objects 12) Which of the following is a natural satellite from the Earth's perspective? a) Moon b) Sun c) GPS 13) How many planets are in the our solar system? a) 9 b) 7 c) 8 d) 10 14) What is in between the inner planets and the outer planets? a) Asteroid belt b) Kuiper belt c) Sun d) Moon 15) Gravity attracts all objects towards one another. a) False b) True c) It depends 16) Which of the following are the Gas Planets? a) Jupiter, Saturn, Mars, Neptune b) Jupiter, Saturn, Neptune, Mercury c) Jupiter, Saturn, Uranus, Neptune d) Mars, Venus, Jupiter, Saturn 17) Which set of characteristics listed below are unique to the inner planets? a) Gaseous, small b) Cratered, liquid c) Cool, humid d) Terrestrial, rocky 18) Something that orbits around another object; for example, a moon orbiting a planet or a human-made object orbiting Earth. a) comet b) moon c) coma d) satellite 19) The four largest and brightest moons of Jupiter, which were discovered by Galileo Galilean: Ganymede, IO, Calisto, and Europa. a) solar system b) asteroids c) comas d) Galilean Moons 20) What is designed and built to transport people and cargo between Earth and space? a) space rocket b) space shuttle c) space probe d) telescope 21) What object is launched into orbit and designed to send and receive information? a) rover b) satellite c) space shuttle d) space probe 22) In 1972 what space mission was responsible for getting a man on the moon? a) Challenger b) Voyager c) Gemini d) Apollo 23) What scientist use a telescope to observe the night sky and led to him being called the father of astronomy? a) Galileo b) Einstein c) Dr. Tyson d) Dr. Wernher von Brauun 24) Mercury a) Terrestrial b) Gas Giant 25) Saturn a) Terrestrial b) Gas Giant 26) Which two astronauts were the first people to walk on the moon? a) Neil Armstrong and Buzz Aldrin b) Galileo Galilei and Isaac Newton c) Galileo Galilei and Neil Armstrong d) Isaac Newton and Buzz Aldrin 27) What is the ISS? a) International Student Services b) Inside Sun Secrets c) International Space Station d) Iraq Space Services 28) Earth and the rest of the solar system are located in the galaxy ___________________. a) Milky Way b) star c) Andromeda 29) The first satellite launched into space by Russia a) Space Suit b) Sputnik c) ISS d) Astronaut 30) Who was the first American in space? a) John Glenn b) Alan Shepard c) Neil Armstrong d) Yuri Gargarin 31) Who was the first man in space? a) Alan Sheppard b) Neil Armstrong c) Yuri Gargarin d) John Glenn 32) What year was the first landing on the moon? a) 1957 b) 1961 c) 1962 d) 1969 33) What happened during the Apollo 11 mission? a) Buzz Aldrin and Neil Armstrong were the first men to set foot on the moon b) Yuri Gagarin flew one orbit around Earth on Vostok 1 c) A space shuttle exploded while launching into Earth's orbit d) Nothing, it was a failed mission 34) The space shuttle a) could be used only on b) could be used many times to carry astronauts into orbit c) was a space probe d) was the vehicle that carried astronauts to the moon 35) To which rocky planet are scientists planning a manned space mission a) Jupiter b) Mars c) Neptune d) Venus 36) What scientist use a telescope to observe the night sky and led to him being called the father of astronomy? a) Galileo b) Einstein c) Dr. Tyson d) Dr. Wernher von Brauun 37) Which piece of equipment explores the outer planets? a) Space Shuttle b) Rover c) Space Probe d) Satellite 38) I helped a space shuttle get off of Earth and enter space. What am I? a) Rover b) Rocket c) Space Probe d) Satellite 39) I am a vehicle that explored the surface of the moon. No humans were with me! What am I? a) Space Shuttle b) Rocket c) Satellite d) Rover

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