Chapter 15 Flashcards
What are the three main kinds of rocks
The three main kinds of rocks are sedimentary igneous and metamorphic
What two classifications can sedimentary rocks have
Clastic or non-clastic
What is a fossil
A fossil is a trace or remains of living organisms that have been preserved by natural means
What can fossils tell us
Fossils can tell us much about living things as they used to be
What are the three kinds of fossil fuels formed from the matter of four more organisms
Coal oil and natural gas
What are the two types of igneous rocks
Extrusive and intrusive
What is a rock
Rocks are natural solid materials containing minerals or organic matter that form the earths crust
What do metamorphic rocks result from
Chemical or structural changes in pre-existing rocks
What are the two types of metamorphic rocks
Foliated or non-foliated
What are the main differences between sedentary igneous and metamorphic rocks
Sedimentary rocks appear to be made of particles bonded together by natural cements or of solids that settled from water solutions
Igneous rocks appear to have been Michaeltin in the past
Metamorphic rocks are those that appear to of changed in their structure or chemical composition since their creation
Sedimentary bonded
Igneous Moulton
Metamorphic changed
What does the word metamorphic mean
Metamorphic means change of nature
What does the word igneous mean
Igneous means of fire
How do you extrusive rocks form
Extrusive rocks formed when lava solidifies above the Earth’s surface
How do intrusive rocks form
Intrusive rocks formed when magma solidifies after squeezing into other rocks
What formerly living creature is oil formed from
Oil was formed from ocean dwelling creatures such as fish and algae