Rocks and Soil
Terms in this set (25)
Soil can best be described as...
loose weathered material on Earth's surface, humus, water and air
The relationship between soil particle size and movement of water thru soil can best be described as...
larger soil particles hold less water, while smaller soil particles hold more water.
The purpose of soil is...
...to grown healthy plants
Soil can be damaged or lost by...
...erosion and loss of soil fertility
soil that is dark in color and rich in humus
an organism that mixes soil, adds nutrients and creates space for air and water
made up of top soil that has a good mixture of loam
top soil that has a good mixture of rock particles, humus, air and water
decayed organic matter in soil
the loose leaf and branch material that lays on top of the soil
Which layer of soil best supports plant growth
The three groups of rocks...
igneous, metamorphic and sedimentary
Rocks are classified by...
mineral composition, texture and color
movement of sediment or soil by wind and water
rock that forms from magma or lava
rock that forms from heat & pressure
rock that forms in a 4-step process
a set of processes that break down, change and create new rock
the look and feel of a rock's surface
what are rocks made of
solid layer of rock under the soil
layer of weathered rock that begins process of soil formation
mixture of some humus and larger rock particles that leach or settle from horizon level above
Minerals give rocks their...
color and texture
The theory that all of the continents were once in a giant land mass is known as...