Flashcards about Planets and Astronomy

Front

Unit used to measure distance from Earth to the Sun.

Back

Astronomical Unit (AU)

Front

Mercury's temperature range.

Back

420°C to -170°C

Front

Earth's twin or sister planet.

Back

Venus

Front

Length of a day on Venus.

Back

243 Earth days

Front

Earth's active geology includes.

Back

Volcanoes, crustal movement

Front

Only planet not named after a Roman god.

Back

Earth

Front

Fourth planet from the Sun.

Back

Mars

Front

Most studied planet besides Earth

Back

Mars

Front

Mars has two tiny, irregular-shaped moons

Back

Deimos and Phobos

Front

Ceres is named after

Back

The Roman goddess of the harvest