Igneous Rocks
Formed when ______ or _______ cools and hardens.
lava, magma
Formed when sediment accumulates and ________ and ______ together.
compacts, cements
Forms under intense ______ and _______.
heat, pressure
The cycle through which Earth's rock change from one type into another over time.
The Rock Cycle
Scientists classify rocks as igneous, metamorphic or sedimentary based on their _______.
a. shape
b. formation
c. color
b. formation
The molten rock found beneath the Earth's surface.
Magma
T/F: Sedimentary rocks can contain fossils.
True
Which of the following processes produces metamorphic rocks?
a. gradual cooling
b. extreme pressure
b. extreme pressure
when compacted sediments stick together and turn into rock
cementation
Molten rock, or magma, that has reached Earth's surface by volcanic action.
Lava
Which of the following best describes the processes that form igneous rock?
a. heating and extreme pressure
b. erosion and compaction
c. crystallization and solidification
c. crystallization and solidification
Tiny pieces of rock sand or shells is called?
Sediment
Metamorphic rocks have been changed by pressure or heat and used to be _______ or _________.
igneous, sedimentary
The three types or rocks are:
metamorphic, igneous and sedimentary.
Rocks are classified by the way they are ________.
formed/created
Where do igneous rocks come from?
Volcanoes
What type of rock can a sedimentary rock turn into?
metamorphic, igneous
In order for a rock to be classified as metamorphic is must have changed with _______ and _______.
heat, pressure
Rocks on Earth are always ________ due to the harsh environment.
changing
The youngest rocks are in the _____ layers of soil.
Top
The presence of igneous rocks might be evidence that there are ______ in the area.
volcanoes
Which of the following is one of the final processes in the formation of sedimentary rock?
a. cementation
b. melting
c. cooling
a. cementation
Which of the following is true of metamorphic rocks?
a. may have layers or bands
b. commonly contains holes
a. may have layers or bands
The term used to describe rock that has been broken down into smaller pieces-
sediment
The study of rocks, their history and the processes that change them is called...
Geology