Soil
The layer of soil that contains the most humus. Plants grow in this layer.
Hard pieces of the earth's surface.
What are rocks?
Solid materials in nature that were never alive.
What are minerals?
The remains or the trace of a living thing that has died.
What is a fossil?
This is when most fossils formed.
What is during the Flood?
The remains of living things that have died and decayed.
What is humus?
Small bits of weathered rock.
What is sediment?
Measures the hardness of a mineral.
What is the Mohs Scale?
Most fossils are found in this type of rock.
What is sedimentary rock?
Tell 3 things soil is used for.
To grow food for people and animals, to grow plants that are used for medicine, to make bricks, roads, plates and cups
The layer of large, unbroken rock that lies under the subsoil.
What is bedrock?
Layers of sediment that are pressed together and harden.
What is a sedimentary rock?
Salt is an example of this.
What is a common mineral?
What are minerals?
Why are some things not extinct?
Some plants and animals adapted
Loose rock and bits of decaying plant and animal material.
What is soil?
Melted rock that has cooled.
What are igneous rocks?
When crystals are cut and polished to reflect lights
What are gems?
No more of the plants or animals of their kind are still alive
What is extinct?
The breaking down of rocks into smaller pieces
What is weathering?
Larger pieces of rock and contains less humus than topsoil.
What is subsoil?
When igneous or sedimentary rocks are changed by great heat and pressure.
What is metamorphic rock?
Used to identify the minerals.
What is a strike test?
A characteristic or feature that helps a living thing to survive.
What is Adaptation?
Wind and water moving rocks and soil.
What is erosion?