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