Structure of the Geosphere
Which is the outermost layer of the Geosphere?
Crust
What are the 3 characteristics that define a mineral?
Solid, natural and inorganic
What are the magmatic rocks made up of?
Magma (or cooled magma)
What are the two types of metamorphic rocks?
Foliated and non-foliated
What is a sediment?
Pieces of other rocks that were eroded, transported and finally deposited in a place.
Which is the thickest layer of the Geosphere?
Mantle
Which of these are NOT minerals?
Wood, diamond, petrol, gold
wood and petrol
What is the magma?
It is a mixture of molten rock, liquids and gases
How are metamorphic rocks formed?
When an existing rock suffers pressure and/or temperature and is transformed.
What are the clasts?
Pieces of another rock that form a new rock.
What is the inner core made up of?
Solid metals
What property of minerals refers to the color of the mineral when it is grouded?
streak color
What is the difference between plutonic and volcanic rocks?
Plutonic rocks are formed when the magma cools slowly. They have big crystals.
Volcanics rocks are formed when the magma cools quickly in volcanoes. They have no crystals.
Name 3 examples of foliated rocks
Slate, Schist, Gneiss
Name 2 non-clastic rocks
Limestone and evaporite
What phenomena can produce the movement of the lithospheric plates? Name 3 at least
Earthquakes, volcanoes, ridges, trenches, tsunamis, mountains.
Name 3 types of luster in mineals
Metallic, vitreous, pearly, dull,...
Name 3 examples or plutonic rocks.
Granite, Diorite and Gabbro
Name 2 examples of non-foliated rocks
Marble and quartzite
Name 3 clastic rocks
Conglomerate, sandstone and mudstone.
What is the lithosphere?
It is a layer made up of the crust and the upper part of the mantle
What is the mineral number 7 in the scale of Hardness?
Quartz
Name 3 examples of volcanic rocks
Basalt, Andesite and Rhyolite
Which metamorphic rock can be used to build the roofs of the houses?
Slate
How are evaporite rocks formed?
By evaporation of the water in lakes or seas. The salts remain at the bottom.