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