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