The useful idea
- The red planet
Mars is the fourth planet from the Sun.
- Its orange-red look
It is also known as the "Red Planet", for its orange-red appearance.
- Two small moons
Mars has two natural satellites that are small and irregular in shape: Phobos and Deimos.
Why this matters
Look for Mars the next time you notice this pattern in everyday life.
Try this
Look for Mars the next time you notice this pattern in everyday life.
Test your recall
Which idea belongs to the explanation of Mars?
- Two small moons
- Its orange-red look
- The red planet — correct
Mars is the fourth planet from the Sun.