Show:
Igneous Rocks
Sedimentary Rocks
Rocks in the Reef
Classifying Rocks
100
How are igneous rocks formed?
Cooling magma or lava
100
Define sediment.
Sediment- is small, solid pieces of material that come from rocks or living things.
100
What do some people call "A City in the Sea"
The Florida Keys
100
What is an example of Course Grain (Grain Size) rocks?
Diorite
200
Name one building material that is probably in your kitchen.
Counter tops made out of polished granite
200
How are sedimentary rocks formed?
forms when particles of other rocks or the remains of plants and animals are pressed and cemented together.
200
Define coral reef
Coral reef - skeletons that grow together to form a structure
200
What is one example of Rounded Grain (Grain Shape)?
Conglomerate
300
What are the 3 classification tools used for classifying igneous rocks?
Origin, Texture, and Composition
300
Explain the process of sedimentary rocks
Erosion- running water,wind, or ice loosen and carry away fragments of rock Deposition- process by which sediment settles out of the water or wind carrying it Compaction- process that presses sediments together Cementation- process in which dissolved minerals crystallize and glue particles of sediment together
300
How is the coral reef formed?
How is the coral reef formed? To form there skeletons, coral animals absorb the element calcium from the ocean water.
300
What is one example of Banded rocks (Grain Pattern)
Gneiss
400
What is the difference between Extrusive and Intrusive Rocks?
Extrusive- igneous rocks formed from lava that erupted onto Earths surface Intrusive- igneous rocks that formed when magma hardened beneath Earths surface
400
Name one example of organic rock
coal
400
What condition of temperature do coral animals require?
warm, and shallow waters.
400
About __ minerals make up most of the rocks of Earth's crust
20
500
How can mineral composition affect a rocks color?
Lava that is low in silica usually forms dark-colored rocks, such as basalt. Magma that is high silica usually forms light-colored rocks, such as granite.
500
Name the 3 types of sedimentary rocks.
Clastic, Organic, and Chemical rocks
500
True of False: Coral reefs are formed from the skelatons of tiny little animals
True
500
Define Rock-Forming Minerals
Mixtures of minerals and materials in one rock