Mars

Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury. It is often referred to as the "Red Planet" due to its reddish appearance.

Physical Characteristics

Mars has a thin atmosphere composed mostly of carbon dioxide. The surface of Mars is covered in iron oxide, giving it a reddish appearance. It has the largest volcano in the Solar System, Olympus Mons, and the longest canyon, Valles Marineris.

Exploration of Mars

Several space missions have been sent to explore Mars, including orbiters, landers, and rovers. Notable missions include the Viking program, Mars Pathfinder, Spirit and Opportunity rovers, and the Curiosity rover.

Potential for Life

Scientists are interested in Mars due to its potential to have supported life in the past and the possibility of hosting life in the future. Evidence of water and organic molecules has been found on Mars, raising questions about the planet's habitability.

Study Guide

1. What is the position of Mars in the Solar System?
2. Describe the atmosphere of Mars.
3. What gives Mars its reddish appearance?
4. Name the largest volcano and the longest canyon on Mars.
5. What are some notable space missions that have explored Mars?
6. Why are scientists interested in Mars regarding the potential for life?

[Mars] Related Worksheets and Study Guides:

• Our Solar SystemScience • Seventh Grade
• The solar systemScience • Third Grade