What famous astronomer is well-known for discovering four of Jupiter's largest moons?
What year were Io, Europa, Ganymede and Callisto discovered?
Which is the largest of the Galilean Satellites? (Satellites means moons)
Which two of the Galilean Satellites are closest to Jupiter?
Io and Europa
Europa and Ganymede
Ganymede and Callisto
Callisto and Io
What is unique about Io?
Io have volcanoes which are caused by tidal effects from Jupiter.
Io has oceans of liquid saltwater.
It rotates backwards (clockwise) on its axis.
It orbits Jupiter backwards (clockwise).
What is the order of the Galilean Satellites going from closest to Jupiter to furthest?
Io, Europa, Ganymede, Callisto
Callisto, Io, Ganymede, Europa
Europa, Callisto, Io, Ganymede
Ganymede, Io, Callisto, Europa
What is unique about Europa?
It likely has liquid water under its smooth ice crust, which is a potential location for life to have formed.
It has many active volcanoes.
It is the largest non-planet object in the solar system.
Order the Galilean Moons from largest to smallest.
Ganymede, Callisto, Io, Europa
Callisto, Ganymede, Europa, Io
Europa, Io, Callisto, Ganymede
The volcanic activity of Io is a consequence of:
radioactive materials in Io's interior
frequent meteoroid impacts
frictional heating due to atmospheric winds