A) thrust. B) velocity. C) an action force. D) escape velocity.
A) 1961. B) 1971. C) 1957. D) 1969.
A) rover B) space station C) space shuttle D) space probe
A) Great Britain. B) the United States. C) the Soviet Union. D) China.
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 be reused after returning to Earth. B) it requires less fuel to overcome gravity at the time of launch. C) the total weight of the rocket is reduced as the rocket rises. 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) carry out experiments in space. D) show that different countries can work together.
A) a rover. B) the Eagle. C) the moon. D) Explorer 1.
A) the space race B) the Apollo program C) NASA D) the International Space Station
A) vacuum B) thrust C) rover D) velocity
A) Buzz Aldrin B) Robert Goddard C) Neil Armstrong D) John Glenn
A) space stations B) satellites C) space shuttles D) rovers
A) False B) True
A) False B) True
A) True B) False
A) True B) False
A) space shuttle B) rovers C) space station D) space probe
A) space station B) space probe C) space shuttle D) rovers
A) space probe B) rovers C) space station D) space shuttle
A) space probe B) space station C) rovers D) space shuttle
A) rover B) space station C) space shuttle D) space probe
A) space shuttle B) rover C) space station D) space probe
A) space shuttle B) rover C) space station D) space probe
A) rover B) space probe C) space station D) space shuttle
A) False B) True |