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