1.
A) the production of elements by stars B) all answers are correct C) the evolution of galaxies D) the process of star and planet formation 2.
A) China B) United States C) Japan D) Soviet Union 3.
A) It would be cheaper to make, so it would cost less. B) Many countries would chip in, so it would cost less. C) It would be more accurate, bring back more data, and it would be more cost effective. D) It would be reusable, so it would cost less. 4.
A) because sound waves can't travel through empty space B) because there's no such thing as sound in space C) because outer space alters the astronaut's hearing D) because sound waves can't travel in space, far from Earth 5.
A) the way they are designed B) the type of fuel they use C) the parts of space they explore D) their uses 6.
Hubble Space Telescope ?A) It is a reflecting telescope, and there was a problem with the lens. B) It is a reflecting telescope, and there was a problem with the mirror. C) It is a refracting telescope, and there was a problem with the mirror. D) It is a refracting telescope, and there was problem with the lens. 7.
Galileo explore before it was crushed by its atmosphere?A) Uranus B) Mars C) Jupiter D) Saturn 8.
A) Mars Climate Orbiter and Pathfinder B) Mars Global Surveyor and Polar Lander C) Sojourner and Pathfinder D) Mars Climate Orbiter and Polar Lander 9.
A) lost B) circling C) falling D) in orbit 10.
A) Does water exist in the craters of the Moon's poles? B) Is the Moon habitable? C) Does the Moon have an atmosphere? D) Can we harvest soil from the Moon? 11.
A) the number of times a wave vibrates per unit of time B) the number of times a wave moves per unit of sound C) the distance waves travel in a certain amount of time D) the distance a line travels in a certain amount of time 12.
A) fuel B) the fact that we don't know what's out there C) sunlight D) air 13.
A) because they use radio waves, which do not pass freely through Earth's atmosphere due to unpredictable weather B) because they never run out of energy C) because they use radios to help various telescope's computers communicate with each other D) because they use radio waves, which pass freely through Earth's atmosphere in any weather condition 14.
A) Soyuz B) International Space Station C) Skylab D) Mir 15.
A) A reflecting telescope uses a convex lens to magnify an image, and a refracting telescope uses a mirror. B) There is no difference. C) A refracting telescope uses a mirror, and a reflecting telescope uses a concave lens to magnify an image. D) A refracting telescope uses a convex lens to magnify an image, and a reflecting telescope uses a mirror. 16.
A) mirrors B) lenses C) computers D) lasers 17.
A) lenses B) mirrors C) weather conditions D) computers 18.
Cassini is __________.A) Saturn B) Uranus C) Jupiter D) Pluto 19.
A) 2000 B) 2020 C) It's operational now. D) 2005 20.
A) Project Surveyor B) Project Apollo C) Project Gemini D) Project Mercury
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