Class 8 Science Karnataka Board Syllabus

Karnataka Board Science Syllabus

Class 8 Science Karnataka Board Syllabus

1.The Living World

  • Classification of living organisms
    • Nature, scope and branches of biology
    • Classification of living organisms
    • Brief history
    • Two kingdom to five kingdom classification
    • Linnaean Hierarchy
    • Binomial nomenclature
    • Systematic position of any one plant (mango) and any one animal (man)
  • Study of cells and tissues
    • History of cell biology
    • Concept of cell
      • Cell membrane – passive and active transports
      • Cytoplasm
      • Organelles (Including Nucleus)

2.Materials

  • Heat
    • Heat and Temperature, definition and differences, effects, applications
    • Temperature scales and Interconversion
    • Thermometer: types and application
      • Fahrenheit to kelvin, Celsius to Fahrenheit, Melting Point, Boiling Point
      • Solids, liquids, gases, density and specific gravity
  • Use of chemicals in daily life
    • Preparation – Properties and uses of Chlorine, Sulphur dioxide
  • Water
    • Baking soda
    • Manufacture of Soaps and detergents and uses
    • Liquid soaps
    • Chemical properties of H20
    • Deliquescent and effervescent substances
    • Removal of hardness of water

3.How Things work

  • Communication
    • Meaning and means of communication & devices
  • Electronics
    • Radio
    • Television
    • Telephone
    • Mobile
    • Internet
    • Fax
  • Lenses
    • Converse and concave
    • Reflection and refraction
    • Dispersion
    • Total internal reflection
    • Formation of rainbow
    • Laws of reflection and refraction
    • Mirage
  • Atomic structure
    • Fundamental Particles of atom and its properties
    • Isotopes – Properties
    • Atomic masses
    • Atomic number
    • Valency
    • Molecular masses
    • Equivalent masses
    • Mole concept with examples

4.Food

  • Constituents of Food
    • Carbohydrates
    • Lipids
    • Proteins
    • Vitamins
    • Minerals
    • Roughages
    • Water
  • Classification and functional descrifation
  • Tests to detection of constituents of food:
    • Sugar
    • Starch
    • Protein
    • Lipid
  • Food Production
    • Soil management
    • Irrigation
    • Organic farming, crop rotation, mixed farming, hybridization
    • Green revolution
  • Crop protection
    • Uses of manures, chemical fertilizers and bio fertilizers
    • Nitrogenous, Phosphates, inorganic and organic fertilizer
    • Advantages and Disadvantages of fertilizers

5.Microbes and man

  • Historical background
    • Importance of Biogenesis
    • Microbes and their types
    • General Characteristics of each type
    • Structure of a bacteriophage, Bacillus, Amoeba, Chlamydomonas, Yeast and Aspergillums
    • Microbial Infections one example for each group
    • Mode of Infection – Symptoms, causes and preventive measures with respect to microbial infection to be mentioned as an example from each group

6.Environmental Science

  • Concept of Ecosystem
    • Ecosystem – concept and definition, Biotic and abiotic components
      • Types of ecosystems
      • Natural and Man made
      • Terrestrial and equatic
      • Interdependence between biotic and abiotic components
  • Energy flow in the ecosystem
    • Energy flow
    • Food chain
    • Food web
    • Ecological Pyramids
      • Pyramid of numbers
      • Pyramid of Biomass
      • Pyramid of energy
  • Bio magnification

7.Natural Resources

  • Renewable and non-renewable resources
    • Renewable and non-renewable resources
      • Water
      • Soil
      • Forest
      • Wild life
      • Fossil fuels
      • Mineral resources
    • Conservation of metallic and non-metallic minerals

8.Life Processes

  • Nutrition
    • Nutrition and types
    • Photosynthesis
      • Definition
      • Process
      • Light dependent and light independent reactions
      • Factors affecting rate of photosynthesis
      • Experiments related to photosynthesis
    • Digestion
      • Definition
      • Digestion in amoeba
      • Cockroach
      • Man
  • Disorders related to digestive system
  • Respiration
    • Definition
    • Types
    • Respiration in plants, in amoeba, in cockroach, in man
    • Disorders related to respiratory system

9.Reproduction and Heredity

  • Reproduction in Higher plants
  • Pollination
    • Types
    • Agents
    • Importance
  • Fertilization
  • Fruits and seeds
    • Grains
    • Cereals
    • Pulses
    • Vegetables

10.Motion

  • Motion, distance travelled, displacement, speed, problems
  • Newton’s laws of motions 1st, 2nd, 3rd
  • Acceleration
  • Retardation force, momentum problems
  • Atomic structure
  • Contributions of Dalton, Rutherford and Neil bohs
  • Cathode and anode rays & their properties
  • Chemical reactions types
    • Combination
    • Decomposition
    • Displacement
    • Double displacement
  • Balancing Chemical Equations

11.Energy, Work and Force

  • Energy, Definitions
  • Law of conservation of energy
  • KE, PE, Power, Units problems
  • Sound
    • Reflection of sound
    • Characteristics of sound
  • Solids, Liquids, Gases, Density, sp gravity
  • Heat and temp
    • Definitions
    • Differences
    • Effects and applications
  • Thermometer, types, and applications, The different beales and under conversions
  • MP, BP, difference between heat and temp, units

12.Space Science

  • Solar system
    • Solar system introduction
    • Geocentric and Heliocentric model
    • Planets
    • Zodiacal Constellations

13.Evolution of Life

  • Origin of life
    • Origin of Life
    • Oparin’s theory of chemical evolution
  • Theories on Evolution
    • Theories on evolution
      • Lamark’s theory
      • Darwin’s theory
      • Neo-Darwinism
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