click below
click below
Normal Size Small Size show me how
Rocks and minerals
Study guide for test
Question | Answer |
---|---|
What tools are used to perform field tests | water clay nail penlight |
Water is used to | see a mineral's true color or sense its smell |
clay is used for | the streak test for color |
Nails is used for | the scratch test for hardness |
penlight is used | decide if a mineral is transparent, translucent or opaque |
Fossil | remains or traces of an organism that lived long ago |
cleavage | a plane along which a mineral most easily splits |
gem | a precious stone that has been cut or polished |
luster | the way in which a mineral reflects light |
light | can be tested by seeingif light will pass through a mineral |
What does a geologist do? | collect and study rocks and minerals |
Sulfer is a mineral that | smells like rotten eggs found in cabbage and onion yellow used in making gunpowder |
Transparent | transmits all fo the light that is shined |
tanslucent | transmits varying degrees of light |
opaque | transmits no light |
see through or clear glass is an example of | transparent |
waxed paper is an example of | translucent |
a piece of wood is an example of | opaque |
igneous rock is formed by | when melted rock cools |
sedimentary rock is formed by | layers that are compacted and cemented together |
metamorphic rock is formed by | changes as a result of underground heat, pressure and water |
magnetite is used for | a compasss it is a lodestone |
granite, marble and limestone are used for | making buildings |
sulfur and feldspar are used for | medicine |
gypsum is used for | walls in homes |
lead found in galena is used for | storing radioactive material |
Rocks are made of | one or more minerals |