Moh's hardness scale tells how hard a rock or mineral is on a scale of one to _____.
ten
100
True or False...
You can easily tell the type of rock or mineral from its color.
FALSE -
Rocks and minerals often come in a variety of different colors.
100
How many categories of rocks are there?
3
200
Name an example of sedimentary rock.
limestone,
sandstone,
shale,
conglomerate
200
What kind of rock is obsidian?
igneous
200
On the Moh's hardness scale, a mineral or rock with a hardness of 1 is very
a.) soft
b.) hard
c.) round
a.) soft
200
This mineral is very shiny and breaks into sheets.
mica
200
Which type of rock would be most likely to be found near a volcano?
igneous rock
300
Name an example of metamorphic rock.
marble,
slate,
quartzite,
gneiss
300
What are minerals?
chemical elements
300
This is the softest mineral with a hardness level of 1. (It is used to make baby powder and talcom powder.)
Talc
300
This type of rock floats!
Pumice
300
Which type of rock has undergone changes because of heat and pressure?
metamorphic
400
A conglomerate is a mixture of _________ and ________ that were rolled around on the bottom of the ocean or rivers and became cemented together.
smooth stones and pebbles
400
Rocks and minerals are found...
a) under the ocean
b) inside a volcano
c) inside the Earth
d) ALL of the above
d) All of the above
400
This is the hardest rock. (It is used to make buildings and statues.)
granite
400
This type of rock bubbles or reacts when you put acid on it.
Limestone
400
Where would sedimentary rocks most likely form?
under the ocean
500
Name 2 things rocks or minerals are used for.
granite is used for buildings and countertops,
talc is used for baby powder/talcom powder,
graphite is used for pencils,
garnet in sandpaper,
pumice for smoothing feet,
tools, jewelry,