Soil
Igneous Rocks
Sedimentary Rocks
Metamorphic Rocks
Minerals
100
This is the layer of soil that contains humus. Plants grow here.
What is topsoil?
100
Igneous rocks form when this cools.
What is hot, melted rock?
100
Sedimentary rocks form when layers of _________ are pressed together and harden.
What is sediment?
100
Metamorphic rocks form when igneous and sedimentary rocks are changed by great _________ and ___________.
What are heat and pressure?
100
This mineral is good for our bodies and is found in milk and other dairy products.
What is calcium?
200
This layer of the soil has large, unbroken rock.
What is bedrock?
200
Igneous rocks form when hot melted rock escapes from the earth's core through this passageway.
What is a volcano?
200
Sedimentary rocks are made of layers of sediment, so they often appear to have ____________.
What are stripes?
200
Limestone, a sedimentary rock, becomes ___________ with great heat and pressure.
What is marble?
200
These minerals, called precious metals, are used to make jewelry.
What are gold and silver?
300
This layer of soil does not contain humus and contains larger pieces of rock.
What is subsoil?
300
Some igneous rocks form when lava cools and hardens quickly outside of the volcano. This is called an ________ igneous rock.
What is extrusive?
300
This common sedimentary rock is formed from shells and bones of sea animals.
What is limestone?
300
Shale, a sedimentary rock, becomes ___________ under great heat and pressure.
What is slate?
300
Our pencils contain this common mineral.
What is graphite?
400
Plants and animals decay, or break down, and become this.
What is humus?
400
Other igneous rocks form inside the volcano where the magma cools slowly. This is called an ___________ igneous rock.
What is intrusive?
400
During the Flood many living things were buried quickly. These ___________ are often found in sedimentary rocks.
What are fossils?
400
Granite, an igneous rock, changes to ________ under great heat and pressure.
What is gneiss?
400
We use Mohs Scale to measure the softness or hardness of minerals. The softest mineral on the scale is __________.
What is talc?
500
Rocks break apart by water, ice, wind, and plants during this process.
What is weathering?
500
This common intrusive igneous rock was carved to form Mt. Rushmore.
What is granite?
500
This sedimentary rock forms from layers of mud.
What is shale?
500
Metamorphic comes from the word __________, which means "to change".
What is metamorphosis?
500
This hard mineral is used in drills and other tools that cut hard things.
What is a diamond?
M
e
n
u