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