Exploring Mars (Part 2)

What You'll Learn

Mars is called the Red Planet because iron oxide (rust) covers its surface. Scientists send rovers to Mars to search for evidence of past water and possible microbial life.

Key Words

gravity
light-year
constellation

Steps

Step 1 — Read

Read and learn: Mars is called the Red Planet because iron oxide (rust) covers its surface. Scientists send rovers to Mars to search for evidence of past water and possible microbial life.

Step 2 — Do

Measure and record your data in a table.

Step 3 — Observe

Note any unexpected results.

Step 4 — Record

Share your findings with the class or a partner.

Check Your Understanding

Question 1

1 of 3

How long does it take Earth to orbit the sun?