Rocks
Ingeous Rocks
Metamorphic Rocks
Earth's History
Fossils
100
These are scientists who study the physical properties of rocks.
Who are geologists?
100
Rough textured rocks have _________grains, and fine textured rocks have smaller grains.
What is large?
100
These two things cause changes in the minerals making up rocks
What is heat and pressure?
100
The process by which rocks are changed from one type to another is called the ________
What is rock cycle?
100
Scientists use clues from fossils to learn about the Earth's _______
What is past?
200
Rocks are made of naturally occuring substances called _____ that are neither plants or animals.
What are minerals?
200
Rocks formed from hot, molten rock material that is _____ and hardened are called igneous rocks.
What is cooled?
200
Igneous, sedimentary, and metamorphic rocks changed by heat or pressure are called __________
What are metamorphic rocks?
200
A rock formed from smaller bits of rocks cemented together is called a __________ rock.
What is sedimentary?
200
Many fossils are found in _______ rocks.
What is sedimentary?
300
The property that refers to the way light bounces off a mineral is called ________
What is luster?
300
Molten material below the Earth's surface is called _____
What is magma?
300
Can metamorphic rocks be changed by heat and pressure into a different kind of metamorphic rock?
What is yes!
300
Words like older, oldest, younger, and youngest are used to describe the _____________ of rocks.
What is relative age?
300
When a plant or animal dies, the soft parts quickly ____ or are eaten.
What is decay?
400
Rubbing minerals on a ____________ may leave a clue about the mineral.
What is a streak plate?
400
Magma that reaches the Earth's surface is called _____
What is lava?
400
Can heat and pressure change other types of rocks into a metamorphic rock?
What is yes!!
400
These rocks can help us learn about the Earth's past with their layers and fossils.
What are sedimentary?
400
Plants and animals that decay slowly may leave behind a thin layer of ____________
What is carbon?
500
The four properties that can be used to tell minerals apart are:
What is color, streak, luster, and hardness?
500
This shiny, black rock is an example of an igneous rock.
What is basalt?
500
When limestone is heated under pressure, _____ forms.
What is limestone?
500
The age of something compared with the age of another thing is the ________
What is relative age?
500
Rancho La Brea in California is famous for for fossils found in its _____________
What are tar pits?
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