Colonizing Mars
Chemistry
What toxic chemicals are on Mars?
Subtperchlorate compounds with  chlorinepic
Are there chemical reactions on Mars
The top of Mars full of charged molecules that are known for fast  chemical reactions mostly  with water So water up there is goes  apart fast .  lasting only four hours leaving behind hydrogen atoms to float away
What is the chemistry behind mars soil?
it is  mostly silicon dioxide and ferric oxide, with a a bit of  aluminum oxide, calcium oxide, and sulfur oxide
What is the chemistry behind Mars atmosphere?
The atmosphere of Mars is also rich in carbon dioxide (above 96%), but it is extremely thin which is 1% of Earth's atmosphere very dry, and located further away from the Sun. This combination makes the planet an incredibly cold place. The absence of water makes the temperature on Mars change a lot 
source phys.org
the atmosphere of mars is f 95.32% carbon dioxide, 2.7% nitrogen, 1.6% argon and 0.13% oxygen
Ecology
How would we grow plants on Mars?
we would use hydroponically initially, using artificial light.
how would we grow food on mars? 
water harvested from the soil  and cyanobacteria, often referred all from the ground 
Electricity
How much electricity is used on a rocket ship? 
about 300 W to 2.5 kW of electricity is needed to power all the computers, motors, valves, data storage  and receivers, devices, instruments, hosts of sensors, radio transmitters
how much fuel does a rocket ship need? 
 A Rocket Boosters uses 1,000 pounds of fuel per second. 
Space 
What is the weather like on mars? 
Mars actually has 4 seasons and has  strong winds, and clouds. but the thermal variations on Mars are  bigger than on Earth. For example, the temperature  can go from -25.  to -120 in a single day,
Why Is Mars called Mars?
When Was The First Picture Of Mars Taken? 
when was mars discovered
 
The first person to observe Mars  was Galileo, in 1610.