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