1. ______________ are solid substances made from one or more minerals
    (a) stone
    (b) rock
    (c) mountain
  2. Rocks are useful for various purposes
    (a) True
    (b) False
  3. ___________ turns blue litmus paper to red
    (a) bases
    (b) magic
    (c) acids
  4. The substance produced by the chemical reaction of caustic soda and animal fat is ______
    (a) soap
    (b) butter
    (c) palm oil
  5. ___________ is a type of soap
    (a) soft
    (b) slender
    (c) thick
  6. ____________ are solid substances made from one or more minerals.
    a) Stones
    b) Rocks
    c) Mountains
    d) Oceans
  7. Rocks are useful for various purposes.
    a) True
    b) False
    c) Maybe
    d) Sometimes
  8. ___________ turns blue litmus paper to red.
    a) Bases
    b) Magic
    c) Acids
    d) Water
  9. The substance produced by the chemical reaction of caustic soda and animal fat is ______.
    a) Soap
    b) Butter
    c) Palm oil
    d) Vinegar
  10. ___________ is a type of soap.
    a) Soft
    b) Slender
    c) Thick
    d) Liquid
  11. The two types of acids are ________________ and ______________________.
    a) Hydrochloric and Nitric
    b) Solid and Liquid
    c) Organic and Inorganic
    d) Red and Blue
  12. The two types of bases are ________________ and ______________________.
    a) Strong and Weak
    b) Acidic and Alkaline
    c) Soluble and Insoluble
    d) Positive and Negative
  13. Limestone is an example of ______________ rock.
    a) Sedimentary
    b) Igneous
    c) Metamorphic
    d) Artificial
  14. _____________ is used as a building material.
    a) Glass
    b) Wood
    c) Plastic
    d) Concrete
  15. Granite is an example of ______________ rock.
    a) Sedimentary
    b) Igneous
    c) Metamorphic
    d) Composite
  16. _____________ is used to make statues and jewelry.
    a) Marble
    b) Sandstone
    c) Slate
    d) Gypsum
  17. ____________ is a natural resource obtained from rocks.
    a) Water
    b) Soil
    c) Minerals
    d) Air
  18. The process of breaking down rocks into smaller pieces is called ____________.
    a) Erosion
    b) Weathering
    c) Sedimentation
    d) Deposition
  19. _____________ is an example of a metamorphic rock.
    a) Basalt
    b) Shale
    c) Quartz
    d) Slate
  20. _____________ are formed from the remains of plants and animals.
    a) Fossils
    b) Diamonds
    c) Volcanoes
    d) Ores

Theory: Answer all questions

  1. Mention three types of rock
    (a) ________________________________
    (b) ________________________________
    (c) ________________________________
  2. Give five uses of soap you know
    (a) ________________________________
    (b) ________________________________
    (c) ________________________________
    (d) ________________________________
    (e) ________________________________
  3. List four examples of rock you were taught
    (a) ________________________________
    (b) ________________________________
    (c) ________________________________
    (d) ________________________________
  4. Mention three ways we use rock
    (a) ________________________________
    (b) ________________________________
    (c) ________________________________

Review and revision
  1. What are rocks made of?
    • Rocks are made of one or more minerals. They can also contain organic materials and other substances.
  2. How do rocks form?
    • Rocks form through various processes such as cooling and solidification of molten materials, compression and cementation of sediments, and alteration of existing rocks through heat and pressure.
  3. What are the different types of rocks?
    • The three main types of rocks are igneous, sedimentary, and metamorphic. Igneous rocks form from the cooling of molten materials, sedimentary rocks form from the accumulation and compression of sediments, and metamorphic rocks form from the alteration of existing rocks under heat and pressure.
  4. What are some examples of igneous rocks?
    • Examples of igneous rocks include granite, basalt, and obsidian.
  5. How are sedimentary rocks formed?
    • Sedimentary rocks are formed through the accumulation, compaction, and cementation of sediments such as sand, silt, and clay over time.
  6. Can you give examples of sedimentary rocks?
    • Examples of sedimentary rocks include limestone, sandstone, and shale.
  7. What are metamorphic rocks?
    • Metamorphic rocks are rocks that have undergone changes in mineral composition, texture, or both, due to high temperature and pressure deep within the Earth’s crust.
  8. How do we use rocks in everyday life?
    • Rocks are used in construction (e.g., buildings, roads), manufacturing (e.g., cement, glass), agriculture (e.g., fertilizers), and even in art and jewelry (e.g., sculptures, gemstones).
  9. What is the importance of studying rocks?
    • Studying rocks helps us understand Earth’s history, processes like erosion and weathering, and even aids in finding valuable resources such as minerals and fossil fuels.
  10. How do rocks contribute to the environment?
    • Rocks play a crucial role in shaping landscapes, providing habitats for plants and animals, and influencing the Earth’s climate and water cycle through processes like erosion and weathering.
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