Course MH Std 8 Science 19 Lessons ₹1600 - Purchase This Course You are not enrolled in this course. Please purchase this course to learn from the best quality videos. ₹1600 - Purchase This Course Lessons Expand All | Collapse All 1 Living World and Classification of Microbes 2 Topics Five kingdom classification system Microorganisms: Classification and Habitat 2 Health and Diseases 3 Topics Health and its Failure Disease and its causes Infectious diseases 3 Force and Pressure 6 Topics Contact Forces Non-Contact forces Pressure Pressure exerted by Liquids Pressure exerted by Gases and Atmospheric Pressure Buoyant Force 4 Current Electricity and Magnetism 5 Topics Electric Cell Types of Electric Cell Battery Magnetic Effect of Electric Current Electromagnet and Electric Bell 5 Inside the Atom 6 Topics Law of chemical combination Introduction to charged particles in matter Structure of an atom : Thomson’s model and Rutherford’s model Bohr’s Atomic Model and Neutrons Distribution of Electrons in shells and Concept of Valency Nuclear Reactor 6 Composition of Matter 6 Topics States of matter Mixture Concentration of solution and Suspension Colloidal Solution Types of Pure Substances Writing chemical formulae 7 Metals and Nonmetals 6 Topics Physical Properties of Metals and Nonmetals Chemical Properties of Metals and nonmetals: Reaction with Oxygen and Water Chemical Properties of Metals and Nonmetals: Reaction with Acids and Bases, and Displacement Reaction Uses of Metals and Nonmetals Noble metals, Alloys and Metalloids Corrosion 8 Pollution 7 Topics Air Pollution: The pollutants Acid Rain Global Warming and Greenhouse Effect Ways to Reduce Air Pollution Water Pollution Sources of Water Pollution Soil Pollution 9 Disaster Management 3 Topics Earthquakes Protection against Earthquakes Some Important Disasters 10 Cell and Cell Organelles 6 Topics Structure, Function and Parts of Cell: Basic Components Structure, Function and Parts of Cell: Other Components and Comparison of Plant and Animal cells Plasma Membrane Cell wall and Nucleus Cytoplasm and Cell Organelles Cell Organelles: Lysosomes, Mitochondria, Plastids and Vacuoles 11 Human Body and Organ System 7 Topics Respiration and Need of Respiration Human Respiratory System Human Heart Circulatory System Components of Blood Functions of Blood Blood Groups 12 Introduction to Acid and Base 4 Topics Acids and Bases Litmus as a Natural Indicator Properties and Uses of Acids Properties and Uses of Bases 13 Chemical Change and Chemical Bond 4 Topics Chemical Changes in Everyday Life The Magic of Chemical Reactions Ionic or Electrovalent Bond Covalent Bond 14 Measurement and Effects of Heat 7 Topics Sources of Heat Temperature and Heat Measurement of Temperature Laboratory Thermometer Specific Heat Calorimeter Boiling, Freezing and Sublimation 15 Sound 3 Topics Sound Production Propagation of Sound Sound generation by loudspeaker 16 Reflection of Light 4 Topics Reflection - Laws of Reflection Regular and Diffused Reflection Kaleidoscope Periscope 17 Manmade Materials 5 Topics Plastics Useful Properties of Plastics Man Made Material Plastic and the Environment Glass 18 Ecosystems 2 Topics Ecosystem and Its Components Different Ecosystem 19 Life Cycle of Stars 2 Topics Birth of Stars Lifecycle of Stars