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Rocks and Minerals

Unit 3
Across
Any natural, nonliving solid made up of one substance that has a crystal form; the building blocks of rocks.
(2 words) used to compare the hardness of different minerals
A mineral's ability to scratch another mineral
Remains or traces of a once-living thing sometimes found in sedimentary rock
(2 words) A characteristic of matter that you can observe or measure directly
The color left behind when a mineral is rubbed across a white tile
Force applied
A naturally occurring solid made up of minerals or mineral-like matter; solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underlying the soil or oceans.
Down
A visual characteristic we can observe about a rock; depends on the minerals found in a particular rock
This type of rock forms when melted rock, or magma, cools and hardens
Rock that is changed by heat and pressure deep in Earth
(2 words) the natural processes that cause one kind of rock to change into another kind
Rocks broken done into smaller rock pieces
Forms from sediment that is cemented together
When a mineral breaks along straight, smooth lines, it has this
The way a mineral reflects light