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