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Types of soil
General info
vocabulary
All about rocks
layers of soil
100
holds very little water or nutrients
What is sand
100
soil that is this is better for plants to grow
What is thick
100
this is a substance found in nature that is neither animal or plant, all rocks are made from these
What are minerals
100
known as "fire-made" rocks
What is igneous
100
this is the first layers of soil
What is topsoil
200
a mixture of sand and clay
What is loam
200
this type of rock is composed of mainly one type of mineral
What is limestone
200
a mixture of rock pieces, air, water, and organic material that covers Earth's surface
What is soil
200
these rocks change form through heating and squeezing
What is metamorphic
200
this is found under the two layers of soil and is made up entirely of rock
What is bedrock
300
holds a lot of water, clumps together when wet
What is clay
300
this type of rock is composed of many different minerals
What is granite
300
a material that was once living or was formed by a living thing, it adds nutrients to the soil
What is humus
300
rocks that are formed when sand, mud, and pebbles at the bottom of lakes, rivers, and oceans pile up
What is sedimentary
300
this layer contains very small dark particles and has a lot of humus
What is topsoil
400
made up of tiny rock pieces, can be very dry and dusty, does hold some nutrients
What is silt
400
without this, we would have no food to eat
What is soil
400
the way something feels is known as this
What is texture
400
rocks formed when melted rocks cool and harden
What is igneous
400
this layer of soil has bigger, lighter particles and lacks humus
What is subsoil
500
plants grow very well in this type of soil
What is loam
500
these are the building blocks of rocks
What are minerals
500
this refers to the way an object looks when light shines on it, it can be described as shiny, dull, glassy, etc
What is luster
500
the process of constantly breaking apart and forming new rocks is known as this
What is the rock cycle
500
this layer holds less water and minerals than the other layer
What is subsoil