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