Show:
Igneous
Metamorphic
Sedimentary
Minerals
Rock Cycle
100
How is Igneous rock formed?
What is by magma or lava.
100
How are metamorphic rocks created?
By chemical composition changed by heat and pressure.
100
How do sedimentary rocks form?
When sediment is squished down into layers.
100
How do scientists test how hard minerals are?
Moh`s scale.
100
Define the Rock Cycle
How rocks change type.
200
How does intrusive igneous rock form?
When magma cools and hardens below the Earth`s surface.
200
What does non-foliate mean?
Minerals that do not have any bands or stripes.
200
What does it mean if sedimentary rocks are organic?
The remains of decayed plants and/or animals.
200
Are minerals naturally occurring solids in the crust?
Yes
200
Name the three types of rock
Igneous, Sedimentary, and Metamorphic
300
What rock/mineral looks all black and shiny?
Obsidian.
300
Where do most metamorphic rocks emerge from?
At the base of great mountains.
300
Where do most sedimentary rocks form?
At or near the surface.
300
What are the three main types of properties that people look for?
1.Color 2.Texture 3.Crystal Structure
300
Does the rock cycle stop?
No it is always moving.
400
How does extrusive igneous rock form?
When lava cools and hardens above the Earth`s surface.
400
What does foliate mean?
Minerals that have stripes and/or bands.
400
How do chemical sedimentary rocks form?
When minerals are dissolved by water and are deposited again.
400
What is luster and streak?
Luster-reflects light Streak-color scratch
400
Grains of rock are moved by what?
Erosion
500
How many different kinds of igneous rock are there? a. 25 b.700 c.67 d.none of these
B.700.
500
How does a metamorphic rock change to igneous?
Metamorphism.
500
How much does sedimentary rocks cover the Earth?
75% of the Earth`s surface.
500
How many types of minerals are there? (Not just the common ones) a.20 b.75 c.4000 d.123
c.4000 types
500
How do igneous rocks change into metamorphic?
Heat and pressure