WorksheetsPhysical Conditions on Mars
Total questions: 20
Worksheet time: 13mins
The mixture of gases surrounding a planet is called
hydrosphere
geosphere
atmosphere
none of the options
Mars' atmosphere is ____________ compared to Earth's.
10 times denser
100 times denser
10 times thinner
100 times thinner
What are the 2 types of radiation that both Earth and Mars are bombarded with?
solar radiation and cosmic rays
lunar rays and cosmic rays
lunar rays and solar radiation
none of the above
Planet Earth has a layer called outer core that is fluid made of mostly molten iron.
True
False
The _________ metal near the center of the Earth produces a ______________, which induces a ____________ around the entire planet.
solid, magnetic field, heat wave
fluid, seismic wave, magnetic field
molten, electric current, magnetic field
none of the above
Select all options that are true about cosmic rays
bits of atoms from the universe
travel at very high speed
dangerous to living organisms and even electronics
some can penetrate 10 feet of steel
can be blocked by hydrogen and boron atoms
What do scientists think is the reason Mars doesn't have a global magnetic field like Earth?
Because Mars is farther from the sun
Because Mars has a thinner atmosphere
Because Mars' core has cooled down, so no currents
Because Mars is lame
Which elements can help slow down and block cosmic rays?
hydrogen and boron
carbon and oxygen
iron and copper
nitrogen and potassium
Which of the following are possible ways to protect against cosmic rays?
A spacesuit with hydrogenated boron nitride nanotubes
water storage tanks in the roof and walls
living underground
all of the above
Mars' gravity is about _________ that of Earth's.
1/3
1/5
1/100
1/10
A person who weighs 100lbs on Earth would weigh ____ lbs on Mars
38
150
83
50
Mars' atmosphere is 100 times _______ than Earth's
thinner
denser
Mars' atmosphere consists of about 96% ______
CO2 (carbon dioxide)
O2 (oxygen)
N2 (nitrogen)
CO (carbon monoxide)
Earth's atmosphere consists of about ______% CO2
21
78
< 1
100
Mars' atmosphere consists of about ______% O2
21
78
< 1
100
Earth's atmosphere consists of about _____% O2
78
21
<1
100
What are some issues with MOXIE?
Consumes a lot of energy
Needs a very high temp
Produces the toxic gas carbon monoxide
Needs storage tanks
What is a huge advantage of MOXIE?
Can produce oxygen from nitrogen, an abundant gas on Mars
Can produce oxygen from CO2, an abundant gas on Mars
Can produce oxygen from soil, an abundant gas on Mars
Can produce oxygen from plants
Which are possible reasons Mars' atmosphere is so thin?
Its gravity is too weak to keep some of the gases
It doesn't have a magnetosphere
The core has cooled down, so no volcanoes to pump gases into atmosphere
Its temperature is too low.
What are possible reasons the average temperature on Mars is -81oF
Thin atmosphere, so not enough greenhouse gases
It is farther from the sun
It is made of a material that loses heat easily
All of the above
