Rocks
This type of rock forms from cooled lava or magma.
What is an igneous rock.
This process turns melted rock into solid rock when it cools.
What is cooling of the rocks.
This part of soil is made of dead plants and animals.
What is humus
These are the preserved remains or traces of ancient living things.
What are fossils.
How many levels of soil are there?
What is 5 levels.
This type of rock is made from layers of sediment pressed together over time.
What is a sedimentary rock
This process breaks rocks into smaller pieces over time. Hint: Erosion or Weathering.
What is weathering.
This layer is under the humus.
What is topsoil.
This type of fossil shows the shape of an organism pressed into rock.
What is a mold fossil.
How many types of fossils did we learn about?
What is 4 types of fossils.
This type of rock forms when heat and pressure change an existing rock.
What is a metamorphic rock.
This process happens when layers of sediment are pressed together to form rock. Hint: Starts with a C.
What is compaction or cementation.
This type of soil has large particles and drains water quickly.
What is sand.
These fossils show evidence of activity, like footprints or burrows.
What are trace fossils.
This soil type is best for growing plants because it holds water but also drains well.
What is loam.
Granite is an example of this type of rock.
What is an igneous rock.
This process changes rock using heat and pressure deep inside Earth.
What is metamorphism, metamorphic rocks.
This type of soil holds a lot of water because it has very small particles.
What is clay.
Most fossils are found in this type of rock.
What is sedimentary rock.
Scientists who study fossils are called this.
What are paleontologists.
This type of rock often contains fossils.
What is a sedimentary rock.
This type of rock can become any other type through the rock cycle.
What is any rock (igneous, sedimentary, or metamorphic).
T or F - Soil is made of rock pieces, air, water, and this living or once-living material.
What is True.
This type of fossil forms when a mold is filled in with minerals, creating a copy of the original organism.
What is a cast fossil.
This layer of soil is found beneath topsoil and contains more rock pieces and less organic matter.
What is subsoil.