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