A) an action force. B) thrust. C) velocity. D) escape velocity.
A) 1961. B) 1969. C) 1971. D) 1957.
A) space shuttle B) space station C) rover D) space probe
A) the Soviet Union. B) the United States. C) China. D) Great Britain.
A) establish a permanent colony on the moon. B) land astronauts on the moon. C) prove that the moon is solid. D) put the first American in space.
A) it can carry humans into space. B) the total weight of the rocket is reduced as the rocket rises. C) it requires less fuel to overcome gravity at the time of launch. 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) show that different countries can work together. 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 International Space Station D) the space race
A) thrust B) rover C) vacuum D) velocity
A) Neil Armstrong B) Robert Goddard C) Buzz Aldrin D) John Glenn
A) satellites B) space shuttles C) space stations D) rovers
A) False B) True
A) True B) False
A) True B) False
A) True B) False
A) rovers B) space station C) space probe D) space shuttle
A) space station B) rovers C) space probe D) space shuttle
A) space station B) rovers C) space probe D) space shuttle
A) space shuttle B) rovers C) space station D) space probe
A) space shuttle B) space station C) rover D) space probe
A) space probe B) space station C) rover D) space shuttle
A) space station B) space shuttle C) rover D) space probe
A) space shuttle B) space probe C) rover D) space station
A) True B) False |