Planetary Science Flashcard

Front

What is the shape of Venus's orbit?

Back

Circular

Front

What are the names of Mars's moons?

Back

Phobos and Deimos

Front

Why does Venus have little to no magnetic field?

Back

Venus never had oceans and/or plate tectonics like Earth which would allow motion in the core.

Front

What is Mars's nickname?

Back

The red planet

Front

What is the average temperature on Mars?

Back

Minus 60 degrees C

Front

What is the primary component of Venus's atmosphere?

Back

Carbon dioxide.

Front

How does the rotation of Venus compare to Earth?

Back

Venus has a very slow rotation, taking about 243 Earth days to complete one rotation.

Front

What is the significance of Phobos and Deimos?

Back

They are the two moons of Mars, with Phobos being the larger and closer moon.

Front

What is the main reason for Mars's reddish appearance?

Back

Iron oxide (rust) on its surface.

Front

What is the temperature range on Venus?

Back

Around 462 degrees Celsius (864 degrees Fahrenheit) due to a thick atmosphere.