Topics
Matter in Our Surroundings
- Matter
- Characteristics of Molecules of Matter
- The Solid State
- The Liquid State
- The Gaseous State
- Plasma
- Bose-einstein Condensate
- Change of State of Matter
- Concept of Melting (Fusion)
- Concept of Boiling (Vaporization)
- Concept of Sublimation
- Concept of Freezing (Solidification)
- Concept of Condensation (Liquefaction)
- Concept of Desublimation (Deposition)
- Concept of Evaporation
Is Matter Around Us Pure
- Matter
- Concept of Mixture
- Concept of Solution
- Concentration of a Solution
- Concept of Suspension
- Concept of Colloidal Solution
- Evaporation Method
- Centrifugation Method
- Using a Separating Funnel Method
- Sublimation Method
- Chromatography Method
- Distillation Method
- Fractional Distillation Method
- Crystallisation Method
- Concept of Physical Changes
- Types of Pure Substances
- Concept of Elements
- Concept of Compounds
Atoms and Molecules
- Introduction of Atoms and Molecules
- Law of Conservation of Mass
- Law of Constant Proportions
- Concept of Atom
- The Modern Day Symbols of Atoms of Different Elements
- Concept of Atomic Mass
- Concept of Molecule
- Molecules of Elements
- Molecules of Compounds
- Concept of an Ion
- Writing Chemical Formulae
- Concept of Molecular Mass
- Concept of Molecular Mass
- Mole Concept
- Atoms and Molecules Numericals
Structure of the Atom
- Concept of Atom
- Charged Particles in Matter
- The Structure of an Atom
- J. J. Thomson’s Model of an Atom
- Rutherford’s Model of an Atom
- Neil Bohr’s Model of Atom
- Concept of Proton
- Concept of Neutrons
- Concept of Electron
- Concept of Electrons Distributed in Different Orbits (Shells)
- Concept of Valency
- Concept of Atomic Number
- Concept of Mass Number
- Concept of Isotopes
- Concept of Isobars
- Structure of Atom Numericals
The Fundamental Unit of Life
- The Invention of the Microscope and the Discovery of Cell
- Prokaryotic and Eukaryotic Cell
- Osmosis and Osmotic Pressure
- Structure of a Cell
- Plasma Membrane Or Cell Membrane
- Cell Wall
- Nucleus
- Cytoplasm
- Endoplasmic Reticulum (Er)
- Golgi Apparatus
- Lysosomes
- Mitochondria
- Plastids
- Vacuoles
- Difference Between Plant Cell and Animal Cell
- Cell Inclusion
Tissues
Diversity in Living Organisms
Motion
- Concept of Motion
- Displacement
- Concept of Motion
- Motion Along a Straight Line
- Uniform Motion and Non-uniform Motion
- Measuring the Rate of Motion - Speed with Direction
- Rate of Change of Velocity
- Graphical Representation of Motion: Distance - Time Graphs
- Graphical Representation of Motion: Distance - Time Graphs
- Graphical Representation of Motion: Velocity - Time Graphs
- Equations of Motion by Graphical Method
- Derivation of Velocity - Time Relation by Graphical Method
- Derivation of Position - Time Relation by Graphical Method
- Derivation of Position - Velocity Relation by Graphical Method
- Uniform Circular Motion
- Motion (Numerical)
Force and Laws of Motion
- Force
- Force - Push Or Pull
- Forces Are Due to an Interaction
- Exploring Forces
- Force Can Change the State of Motion
- Force Can Change the Shape of an Object
- Concept of Contact Forces
- Concept of Non-contact Forces
- Balanced and Unbalanced Forces
- Newton's First Law of Motion
- Inertia and Mass
- Newton's Second Law of Motion
- Newton's Third Law of Motion
- Conservation of Momentum
- Force and Laws of Motion (Numerical)
Gravitation
- Concept of Gravitation
- Newton’s Universal Law of Gravitation
- Free Fall
- To Calculate the Value of G
- Motion of Objects Under the Influence of Gravitational Force of the Earth
- Concept of Mass
- Concept of Weight
- Pressure
- Buoyancy Force
- Pressure Exerted by Liquids and Gases
- Density of the Fluid
- Archimedes' Principle
- Relative Density
Work and Energy
- Work
- Work Done by a Constant Force
- Energy
- Different Forms of Energy
- Kinetic Energy
- Potential Energy
- The Potential Energy of an Object at a Height
- Work Done by a Energy
- Work Done by a Power
- Conversion of Energy from One Form to Another
- Law of Conservation of Energy
- Rate of Doing Work
- Energy
- Work and Energy (Numericals)
Sound
- Sound
- Production of Sound
- Propagation of Sound
- Sound Need a Medium to Travel
- Longitudinal Nature of Sound Waves
- Characteristics of a Sound Wave
- Speed of Sound
- Reflection of Sound
- Reflection of Sound – Echo
- Reflection of Sound – Reverberation
- Reflection of Sound
- Range of Hearing in Humans
- SONAR
- Structure of the Human Ear (Auditory Aspect Only)
- Sound (Numerical)
Why Do We Fall ill
- Health and Its Failure
- The Significance of ‘Health'
- Personal and Community Issues Both Matter for Health
- Distinctions Between ‘Healthy’ and ‘Disease-free’
- Identification of Disease
- Categories of Diseases
- Chronic Diseases and Poor Health
- Causes of Disease
- Infectious and Non-infectious Causes
- Categories of Diseases
- Infectious Agents
- Diseases Caused by Bacteria
- Diseases Caused by Parasitic Worms: Taeniasis
- Diseases Caused by Protozoa
- Modes of Transmission of Diseases (Air, Water, Food, Insects)
- Organ-specific and Tissue-specific Manifestations of Disease
- Principles of Prevention of Diseases
- Principles of Treatment of Diseases
Our Environment
- Introduction of Our Environment
- The Breath of Life - Air
- The Role of the Atmosphere in Climate Control
- Movements of Air (Winds) and Its Role in Bringing Rains Across India
- Water - A Wonder Liquid
- Concept of Water Pollution
- Mineral Riches in the Soil
- Biogeochemical Cycle
- The Water-cycle
- The Nitrogen-cycle
- The Carbon Cycle
- The Oxygen-cycle
- Ozone Layer Depletion
Improvement in Food Resources
description
- Suspension
- Properties of a Suspension
- Tyndall effect
definition
Suspension: A suspension is a heterogeneous mixture in which the solute particles do not dissolve but remain suspended throughout the bulk of the medium.
notes
Suspension:
A suspension is a heterogeneous mixture in which the solute particles do not dissolve but remain suspended throughout the bulk of the medium.
Properties of a Suspension:
- Suspension is a heterogeneous mixture.
- The particles of a suspension can be seen by the naked eye.
- The particles of a suspension scatter a beam of light passing through it and make its path visible.
- The solute particles settle down when a suspension is left undisturbed, that is, a suspension is unstable. They can be separated from the mixture by the process of filtration.
Tyndall effect:
The scattering of a beam of light is called the Tyndall effect after the name of the scientist who discovered this effect.
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