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