A) escape velocity. B) thrust. C) velocity. D) an action force.
A) 1961. B) 1957. C) 1971. D) 1969.
A) space probe B) rover C) space shuttle D) space station
A) the United States. B) the Soviet Union. C) China. D) Great Britain.
A) land astronauts on the moon. B) establish a permanent colony on the moon. C) prove that the moon is solid. D) put the first American in space.
A) it requires less fuel to overcome gravity at the time of launch. B) it can be reused after returning to Earth. C) the total weight of the rocket is reduced as the rocket rises. D) it can carry humans into space.
A) show that different countries can work together. B) use solar panels to produce electricity for people on Earth. C) carry out experiments in space. D) take photos and readings of other planets in the solar system.
A) the moon. B) the Eagle. C) a rover. D) Explorer 1.
A) NASA B) the Apollo program C) the space race D) the International Space Station
A) vacuum B) velocity C) rover D) thrust
A) Buzz Aldrin B) Neil Armstrong C) John Glenn D) Robert Goddard
A) satellites B) rovers C) space stations D) space shuttles
A) True B) False
A) True B) False
A) True B) False
A) True B) False
A) rovers B) space shuttle C) space station D) space probe
A) space shuttle B) rovers C) space probe D) space station
A) space probe B) space station C) space shuttle D) rovers
A) rovers B) space shuttle C) space station D) space probe
A) space shuttle B) space station C) rover D) space probe
A) space probe B) space shuttle C) rover D) space station
A) rover B) space shuttle C) space probe D) space station
A) rover B) space shuttle C) space station D) space probe
A) True B) False |