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