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