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