one of the seven large land masses on the Earth's surface.
continent
a device sent up into space to travel around the earth, used for collecting information or communicating by radio, television, etc.
satelite
the conditions in the air at a particular time, such as wind, rain, or temperature.
weather
the empty area outside Earth's atmosphere, where the planets and the stars are.
space
an extremely large, round mass of rock and metal, such as Earth, or of gas, such as Jupiter, that moves in a circular path around the sun or another star.
planet
to search a place and discover things about it.
explore
a device with moving parts that uses power to do work of a particular type.
machine