Chapter 6 Flashcards
A non-living, natural substance that make up rock are called_________.
A.Grass. B.Minerals. C.Igneous Rock
B. minerals
Minerals have properties such as color, luster, hardness, and _________.
Streak
Minerals offer clues about how a rock ________.
Forms
A rock formed by lava is called __________ rock.
Igneous
Melted rock called _______, cools and hardens to form igneous rock.
Magma
Layers of minerals pressed and cemented together to form _____________ rock.
Sedimentary
Scientists compare the position of layered rocks to find a rock’s __________ age.
Relative
A rock layer in any _______ in that rock have the same relative age.
Fossil
Heat and pressure form __________ rock.
Metamorphic
Metamorphic rocks form from _____ other rocks, or from other metamorphic rock.
A.all. B.the. C.us
A.all
The rock _______ is how all the rocks form and change.
Cycle
Soil contains pieces of rocks and __________, or decomposed dead plants and animals.
Humus
When animals die, _________ and fungi decompose them.
Bacteria
You might not see them but soil is made up of water, ____ and living things.
Air
All the layers of soil are shown in a soil ________.
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