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