Mars

Mars is the fourth planet from the Sun in our solar system. It is often referred to as the "Red Planet" due to its reddish appearance, caused by iron oxide (rust) on its surface. Mars has fascinated scientists and enthusiasts for centuries due to its potential to support life and its similarities to Earth.

Key Facts about Mars

• Diameter: 6,779 km
• Surface temperature: -87 to -5 °C
• Moons: Phobos and Deimos
• Atmosphere: Thin atmosphere composed mainly of carbon dioxide
• Surface features: Valles Marineris, Olympus Mons, and polar ice caps

Exploration of Mars

Several space missions have been sent to Mars to study its surface, atmosphere, and potential for past or present life. Notable missions include the Mars rovers, such as Curiosity and Perseverance, which have provided valuable data about the planet's geology and climate.

Potential for Life on Mars

Scientists are interested in the possibility of past or present life on Mars. Evidence of liquid water in the past and the presence of organic molecules have led to speculation about microbial life on the planet.

Study Guide Questions

1. What gives Mars its reddish appearance?
2. How does the diameter of Mars compare to that of Earth?
3. What are the names of Mars' two moons?
4. What is the composition of Mars' atmosphere?
5. What are some notable surface features on Mars?
6. What are some key findings from the exploration of Mars?
7. Why are scientists interested in the potential for life on Mars?

[Mars] Related Worksheets and Study Guides:

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