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