Videos for Std IX

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   blinking newRutherford Experiment (25 MB)   
    Plasmolysis (44 MB)
Plant Tissue (96 MB)
    blinking newAtoms and Molecules (37 MB)

Practicals - Physics

    Second Term:
    blinking newExperiment 1 :To verify the laws of reflection of sound. (47 MB)
    blinking newExperiment 2 :To determine the density of a solid (denser than water) by using a spring balance and a measuring cylinder. (22 MB)
    blinking newExperiment 3 :To establish the relation between the loss in weight of a solid when fully immersed in 
    a) tap water
    b) strongly salty water
    with the weight of water displaced by it by taking at least two different solids. (35 MB)
    blinking newExperiment 4 :To observe and compare the pressure exerted by a solid iron cuboid on find sand/wheat flour, while resting on its three different faces and to               calculate the pressure exerted in the three different cases. (35 MB)
    blinking newExperiment 5 :To determine the velocity of a pulse propagated through a stretched string/slinky. (26 MB)
    First Term:
    Experiment 1 :To establish relationship between weight of a rectangular wooden block lying on a horizontal table and the minimum force required to just move it     using a spring balance. (30 MB)
Experiment 2 :To create a kaleidoscope. (22 MB)

Practicals - Chemistry

    Second Term:
    blinking newExperiment 8 : To verify the law of conservation of mass in a chemical reaction. (48 MB)
First Term:
Experiment 1 : To test the presence of starch in the given food sample.(27 MB)
Experiment 2 : To test the presence of the adultrant metanil yellow in dal. (33 MB)
Experiment 3 : To prepare (a) a true solution of common salt, sugar and alum.(b) a suspension of soil, chalk powder and fine sand in water. (c) a colloid of starch in water and egg albumin in water and distinguish between these on the basis of filtration, transparency and stability. (112 MB)
Experiment 4(a) : To determine the melting point of ice. (34 MB)
Experiment 4(b) : To determine the boiling point of water.(30 MB)
Experiment 5 : To separate the components of a mixture of sand, common salt and ammonium chloride or camphor by sublimation. (23 MB)
Experiment 6 : To prepare (A) mixture, (B) a compound, using iron fillings and sulphur powder and distinguish between these on the basis of: (i) appearance (ii) behavior towards magnet (iii)behaviour towards carbon disulphide (iv)effect of heat. (4 MB)
Experiment 7 : To carry out the chemical reaction and identify the type of reaction between the following:(a) Iron nail and copper sulphate, (b) burning magnesium ribbon in air, (c) zinc and dilute sulphuric acid, (d) heating copper sulphate, (e) sodium sulphate and barium chloride (84 MB)

Practicals - Biology

    Second Term :
    Experiment 1 : To study the life cycle of a mosquito. (8 MB)
    blinking newExperiment 2 : To observe and draw the given specimen and to study
                                  (A) One specific feature of its phylum, (B) One adaptive feature with reference to its habitat
                                  (i) Earthworm-subsoil habitat (6MB),                (ii) Cockroach-terrestrial habitat (11 MB),
                                  (iii) Bony fish-aquatic habitat (3 MB),               (iv) Pigeons-birds (3 MB)
    blinking newExperiment 6 : To study the characteristics of Spirogyra, Agaricus, Moss, Fern, Pinus (either male or female cone) and an angiospermic plant. Draw and           give two identifying features of groups they belong to. (237 MB)
    blinking newExperiment 9 : To compare the external feature of monocot and dicot plants. (114 MB)


   First Term :
    Experiment 1 :To study onion and cheek cells (101 MB)
Experiment 2 : To identify parenchyma and sclerenchyma tissues in plants, striped muscle fibres and nerve cells in animals from prepared slides and to draw their labelled diagram. (10 MB)
Experiment 3 : To determine the mass percentage of water imbibed by raisins.(39 MB)