You can observe if the soil is clay, sand, or full of organic matter by the color. You can observe if the soil is compacted by how difficult it is to dig. You can observe if it has worms which is good because worms provide aeration and fertilizer. You can observe how wet the soil is.
Soil fertility.
soil composition, soil texture, and soil fertility
plants and animals that live in soil next time use your brain
xtau
alluvial soil red soil black soil sandy soil
they are harder to observe because youcan't be seen.
Soil fertility.
chemical properties
soil composition, soil texture, and soil fertility
You would observe the length of objects.
alluvial soil red soil black soil sandy soil
plants and animals that live in soil next time use your brain
xtau
you can observe chemical reactions from its smell, colour, shape, or the change in it's properties
alluvial soil red soil black soil sandy soil
these are properties of soil that indicate the type and conditions of the soil and provide a relationship to structural properties
Cut it open or observe it.