Geology/
Atmosphere
Atmosphere
Is there water on Mars?
Yes, but it is in the form of ice and is underneath the surface. It is also very salty and undrinkable.
T/F: A helicopter has flown on Mars.
TRUE
What kind of evidence are scientists looking for to see if life ever existed on Mars?
Signs of past water, or microbial life, such as organic molecules or fossil-like structures.
What is one thing needed for a planet to habitable?
The presence of water, suitable temperatures, and a protective atmosphere.
T/F: Gravity is stronger on Mars.
FALSE
What is the atmosphere mostly made of on Mars?
Carbon Dioxide
When is NASA planning to go to Mars?
2030s
Why do scientists study ancient riverbeds and lakebeds on Mars?
Because liquid water once existed there, which is important for life.
Why is water on Mars important for habitability?
Because all known life needs water to survive.
What are the effects of radiation?
Cancer, radiation sickness, damage to the central nervous system
How many moons does Mars have?
2
Name one rover that has been on Mars?
Curiosity, Sojourner, twin rivers Spirit and Opportunity, and Perseverance
Which Mars rover is currently searching for signs of past life?
The Perseverance rover.
Why is growing food on Mars difficult?
Because Mars soil lacks nutrients and the environment is cold and dry.
What happens if a person is exposed directly to the atmosphere on Mars?
Lack of pressure causes blood to boil
What is the coldest temperature Mars can reach?
-225° F, or -153° C
Operated for 15 years, The Opportunity
Why haven’t scientists found proof of aliens on Mars yet?
Because evidence of life is very small, ancient, and difficult to detect.
Why is Mars’s weak magnetic field a problem for life?
It allows solar radiation to strip away the atmosphere and harm living organisms.
What is a potential health issue that can develop on Mars?
Cataract, cancer, pulmonary fibrosis, and damage to the central nervous system
Why is Mars red?
The surface is covered in iron oxide dust, the same compund that causes rust on Earth.
What new method is NASA testing to send information from Mars missions instead of radio signals?
Laser communication
What type of life are scientists most likely to find on Mars, if any?
Simple microscopic life, not complex organisms.
Why do scientists study Mars to understand Earth’s habitability?
Mars shows how a planet can lose its atmosphere and become less habitable over time.
Why is dust containing perchlorates dangerous?
Electrostatic clings to everything, can cause thyroid issues if inhaled