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Rocks & Minerals - 4th grade

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  • What type of rocks are formed when lava or magma cools down and turns into solid rock?
    Igneous rocks
  • What is the middle layer of hot solid rock and hot liquid magma?
    The mantle
  • Minerals have specific properties: colour, lustre, shape and...
    hardness
  • Minerals are solid, inorganic and natural. Explain two more characteristics of minerals
    They have a definite chemical composition and a crystalline structure
  • What is a rock?
    A rock is a mixture of different minerals.
  • How are sedimentary rocks formed?
    They are formed when small pieces of rock (sediments) are pressed together over time
  • What is the crust?
    the top Earth´s layer, where we live
  • Slate is an example of... what type of rock?
    Metamorphic
  • What is a "mixture of different minerals"?
    A rock
  • Granite is an example of... what type of rock?
    Igneous
  • How are metamorphic rocks formed?
    They are formed when sedimentary or igneous rocks are changed by extreme heat and pressure underground
  • What is defined as "all of the Earth’s layers of minerals and rocks"?
    Geosphere
  • What type of rocks are formed when sedimentary or igneous rocks are changed by extreme heat and pressure underground?
    Metamorphic rocks
  • What is the top Earth´s layer, where we live?
    The crust
  • What is the mantle?
    The middle layer of hot solid rock and hot liquid magma
  • What type of rocks are formed when sedimentary or igneous rocks are changed by extreme heat and pressure underground?
    Metamorphic rocks
  • What type of rocks are formed when small pieces of rock are pressed together over time?
    Sedimentary rocks
  • What is the core?
    the super-hot Earth´s layer, with a solid centre
  • Limestone is an example of... what type of rock?
    Sedimentary
  • Name three layers of the Earth
    Crust, mantle and core
  • How are igneous rocks formed?
    They are formed when lava or magma cools down and turns into solid rock.
  • Are minerals solid, liquid or gas?
    Solid
  • Minerals have specific properties: hardness, colour, shape and...
    lustre
  • What is the super-hot Earth´s layer, with a solid centre?
    The core
  • Are minerals organic or inorganic?
    Inorganic
  • What are the three types of rocks?
    Sedimentary, metamorphic and igneous
  • Are minerals natural or man - made?
    Natural
  • Minerals have specific properties: hardness, lustre, shape and...
    colour
  • Minerals have specific properties: hardness, lustre, colour and...
    shape
  • What is the geosphere?
    All of the Earth’s layers of minerals and rocks