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