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