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