WorksheetsThe Martian - Soil
Total questions: 20
Worksheet time: 10mins
The smallest particles that are part of soil are
silt
clay
dust
sand
The component of soil that is best at retaining water is
clay
sand
organic matter
silt
The 3 primary soil nutrients are
N, P, K
P, Mg, K
N, Ca, P
N ,P, Fe
Which element is most abundant in plants?
N
O
K
C
Why are fungi and bacteria important for soil?
They help soil retain water.
They contain nutrients that are important for plants.
The break down organic matter so plants can access nutrients.
They add biodiversity to soil.
In what part of the plant does cellular respiration occur?
In every cell.
Plants perform photosynthesis, not cellular respiration.
In the leaves.
In the roots.
What does "saturation" mean, in reference to soil?
It means the soil has all the nutrients necessary for plant growth.
It means that the roots have access to adequate O2.
It means that there is enough organic matter.
It means all the pore spaces are filled with water.
Which gases do plants need?
O2
NH3
K+
CO2
What do plants use N for?
To make all macromolecules.
To make ATP.
To make proteins.
For cell water regulation.
What do plants use K for?
To make all macromolecules.
To make ATP.
To make proteins.
For cell water regulation.
What do plants use P for?
To make all macromolecules.
To make ATP.
To make proteins.
To regulate cell water content.
What do plants use C for?
To make all macromolecules.
To make ATP.
To make proteins.
TO regulate cell water content.
In what form is N when it is taken up by plants?
NH3
NH4+
NO3-
HNO3
In what form is C when it is taken up by plants?
C
C6H12O6
CH4
CO2
In what form is K when it is taken up by plants?
KCl
K+
K
KNO3
In what form is P when it is taken up by plants?
H3PO4
P
ATP
PO43-
Of the materials we tested, which retained water the longest?
Potting soil
Horse manure
Martian soil
They were all about the same.
Which of the materials we tested had the greatest biodiversity of microbes?
Potting soil
Horse manure
Martian soil
They were all about the same.
Of the materials we tested, which had the best availability of nutrients?
Potting soil
Horse manure
Martian soil
They were all about the same.
If all the pore spaces in soil are filled with water
the roots may not have access to adequate oxygen.
the plant will reach the permanent wilting point.
plant growth may be limited by the availability of nutrients.
plants may not have enough O2, so can't perform photosynthesis.
