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Clara - Spheres of Earth

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  • Do metamorphic rocks melt?
    no
  • What are minerals?
    natural materials that make up most rocks
  • What causes metamorphic rocks?
    formed from other rocks that were transformed due to heat or pressure
  • What mineral is extracted from mines?
    coal
  • What are the five properties of minerals?
    colour, density, shape, lustre, and hardness
  • What are the four spheres of Earth?
    geosphere, hydrosphere, biosphere, and atmosphere
  • What are the four external processes that change the Earth's surface?
    breaking down of rocks, erosion, transport, and deposition
  • What is lustre?
    how shiny a mineral is
  • What is an ore?
    mineral from which the metal is extracted
  • What are mines?
    deep excavations with shafts and tunnels
  • What do we call the materials that are deposited?
    sediments
  • What is density?
    the relationship between the mass of the mineral and its volume
  • What is the softest mineral?
    gypsum
  • What rocks do we use in construction?
    clay to make bricks and tiles; marble and granite to make buildings
  • What mineral is extracted from quarries?
    granite
  • What is soil?
    the outer layer of Earth's crust
  • What is created when sand is deposited by water?
    beaches
  • What is formed when Earth's internal energy causes parts of the crust to rise?
    mountain ranges
  • Are all minerals always the same color?
    no; some minerals can occur in many different colors
  • Is the inner core solid or liquid?
    solid
  • What is transport?
    water and wind cary eroded materials from one place to another
  • What forms volcanoes?
    magma flows out through cracks of the Earth's surface
  • Is the creation of depressions sudden or slow?
    very slow
  • What are the two ways rocks are broken down?
    water freezing in their cracks and roots of plants growing in the cracks
  • What are fossils and what type of rocks are they contained in?
    remains of living things; sedimentary rocks
  • What minerals are used to make jewelry?
    gold, silver, diamonds, and rubies
  • What is the geosphere?
    rocky part of Earth
  • What are the four uses of minerals?
    obtain metals, make jewelry, obtain other substances, and make electronic computers
  • What is the hydrosphere?
    all the Earth's waters
  • What do underwater volcanoes create? Give an example.
    islands; Islas Canarias
  • What is the core?
    innermost layer of the geosphere
  • What is magma?
    molten rocks
  • What is the biosphere?
    all living things and places where they live
  • What are the three types of rocks?
    igneous, sedimentary, and metamorphic
  • What two agents remove materials from rocks and soil?
    water and wind
  • What is created when rivers and streams erode from their beds?
    valleys
  • What is the crust?
    outermost layer of the geosphere; where life exists
  • What are quarries?
    open-pit mines
  • What rocks do we use for transport?
    fuel obtained from petroleum
  • Where are the two places rocks and minerals are extracted from?
    quarries and mines
  • What are rocks and what are they made up of?
    materials that make up the geosphere; made up of one or more minerals
  • What is the mantle?
    layer below the crust; contains molten rocks called magma
  • What causes igneous rocks?
    magma
  • What is the atmosphere?
    layer of gases that surrounds earth; made up of air
  • What is the hardest mineral?
    diamond
  • What is formed when Earth's internal energy sometimes causes part of the crust to sink?
    depressions
  • What causes changes in the landforms of the Earth's surface?
    internal energy due to the high temperatures of the Earth's interior
  • What are the three layers of the geosphere?
    crust, mantle, and core
  • What is created when sand is deposited by the wind?
    deserts
  • What are the two ways igneous rocks are formed?
    slow cooling of magma that comes to the surface when crust erodes; lava cooling quickly
  • What is a mineral's hardness?
    how easily it can be scratched
  • What is deposition?
    materials settle when the water or wind stops
  • Is the formation of volcanoes sudden or slow?
    sudden
  • What are the two major depressions of Spain?
    Depresión del Ebro and Depresión del Guadalquivir
  • What are the two types of shapes minerals can have?
    regular and irregular shapes
  • What causes sedimentary rocks?
    accumulation of sediments over thousands of years
  • Is the outer core solid or liquid?
    liquid
  • What are the three main uses of rocks?
    obtain energy, construction, and industry
  • What rocks do we use in industry?
    plastics, paints, and fertilizers from petroleum