Uranus & Neptune

Front

Under ordinary conditions, how many planets can you see in the sky without a telescope?

Back

five

Front

In 1781, who discovered the planet Uranus using a telescope?

Back

William Herschel

Front

Named after the reigning king, what was the original name for Uranus?

Back

Georgium Sidus

Front

Originally named after a king, Uranus is now named after _____

Back

a Roman god

Front

Uranus is massive; it's about _____ times the mass of Earth

Back

14.5

Front

To distinguish it from the gas giants Jupiter and Saturn, Uranus is called _____

Back

an ice giant

Front

The pressure inside Uranus can break up methane molecules, possibly creating an ocean of _____

Back

diamonds

Front

Which molecule is really good at absorbing red light, making Uranus look distinctly cyan? Options: hydrogen, helium, ammonia, methane

Back

methane

Front

Which gas, in the atmosphere of Uranus, smells like rotten eggs?

Back

hydrogen sulfide

Front

The atmosphere of Uranus has a temperature of _____

Back

-220 °C