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