whats in a rock?
what is a rock?
a natural substance composed of solid crystals of different minerals that have been fused together into a solid lump
what are the types of sedimentary rocks?
Clastic Sedimentary Rocks, Chemical Sedimentary Rocks, Biochemical Sedimentary Rocks, and Organic Sedimentary Rocks.
granite is what kind of rock?
igneous rock
what are the stages of the rock cycle?
crystallization, erosion and sedimentation, and metamorphism.
what rocks are fossils found in?
sedimentary and occasionally fine-grained, low-grade, metamorphic rocks.
what is one thing in a rock?
minerals
what are types of metamorphic rocks?
phyllite, schist, gneiss, quartzite and marble
What do we call rocks which have formed from the cooling and solidification of molten material?
Igneous rock
What rock groups can form from metamorphic rock?
Sedimentary and Igneous
what rocks are fossils not found in?
Igneous rock
what was the rocks name in the video "The Story of thanksgiving"?
plymouth the rock
what are types of igneous rocks?
Intrusive (plutonic) rocks.
Extrusive (volcanic) rocks.
What do we call magma that reaches the surface of the Earth still molten (that is, erupts out of a volcanic vent)?
lava
what comes first in the rock cycle?
crystallization
why is 90% of all fossils found in sedimentary rock?
fossilization can only occur in an environment without air, otherwise the organic material will simply erode
how much oxygen is in a rock?
92%
is sedimentary rock common?
yes!
what is the rock cycle?
describes transitions through geologic time among the three main rock types
What is the last stage in the rock cycle?
metamorphism
how do you know there's a fossil in the rock?
you will see the imprint
What's found in a rock?
minerals and grain
what has metamorphic rock been through?
extreme heat and pressure
what does the rock cycle begin with?
hot molten liquid called magma.
what is the second stage in the rock cycle?
erosion and sedimentation
what do you do if you find a fossil in a rock?
leave it exactly where you found it.