Show:
Classifying rocks
Igneous rocks
Sedimentary rocks
Rocks from Reefs
Metamorphic rocks
100
What are grains?
What are particles of minerals or other rocks?
100
What is an intrusive rock?
Which igneous rock forms when magma hardens beneath Earth's surface?
100
What is sediment?
What are small, solid pieces of material that come from rocks or living things?
100
What are skeletons of coral animals that grow together to form a structure?
What are coral reefs?
100
What does it mean when metamorphic rock have their grains arranged in parallel layers or bands?
What does foliated mean?
200
What are igneous, metamorphic, and sedimentary rocks?
What are the three major rock groups known to geologists?
200
What does origin, texture, and mineral composition classify?
What three things classify igneous rocks?
200
What kind of rock are clastic, organic, and chemical rocks?
What are the three major groups of sedimentary rocks?
200
Which dead animal's skeleton forms coral reefs?
What happens to a coral animal's skeleton after it has died?
200
The arrangement of the grains that make up the rocks classifies what?
How do geologists classify metamorphic rocks?
300
What is mineral composition, color, and texture?
What do geologists observe when studying a rock sample?
300
What is used for making tools and building materials?
What have people used igneous rock for throughout history?
300
What is erosion, deposition, compaction, and cementation?
What is the series of processes that forms sedimentary rocks?
300
What rock provides evidence of past environments?
What do limestone deposits provide about the Earth's surface?
300
What can change any rock into a metamorphic rock?
Heat and pressure deep beneath Earth's surface can do what to a rock?
400
What rock forms deep under ground?
Where does most metamorphic rock form?
400
What is basalt?
What is the most common extrusive rock?
400
What is a clastic rock?
What type of sedimentary rock is shale?
400
What are tiny relatives of jellyfish with tentacles?
What is a coral animal?
400
What is marble good for making?
What metamorphic rock is good for making chess pieces?
500
What is porphyry?
Which igneous rock has large crystals surrounded by smaller crystals?
500
What is granite?
What is the most abundant intrusive rock in the continental crust?
500
Which chemical rock is made of the mineral halite, which forms by evaporation?
How is rock salt made?
500
What is calcite?
When calcium is combined with carbon and oxygen, what mineral is formed?
500
What is Quartzite?
The sedimentary rock Sandstone changes into what metamorphic rock after going through heat and pressure?