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