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Here We Provide NIOS Practical Lab Manual & Practical Examination Guidelines for 10th Class with important Experiments, Marking Scheme.

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Guidelines for Nios (212) Science And Technology Practical Examination Secondary Level

There will be a practical examination of 15 marks apart from the theory examination.

The distribution of 15 marks is as follows:

Two Experiments (2 × 4 = 8)(Both the experiments should not be from the same section)                          8 Marks

Record Book                                                                                                                                                                     4 Marks

Viva-voce                                                                                                                                                                           3 Marks

Total Marks 15

List of Practical works :


  1. To Determine the Density of the Material of a Given Solid Using a Spring Balance and a Measuring Cylinder
  2. To Find the Average Speed of an Individual, as One Walks/Runs, To and Fro between Two Points
  3. To Observe and Compare the Pressure Exerted by a Solid Iron Cuboid Placed on Fine Sand/Wheat Flour while Resting on its three different Faces and Calculate the Pressure Exerted in the three different Cases
  4. To Verify the Third Law of Motion Using Two Spring Balances
  5. To Determine the Melting Point of Ice
  6. To Study the Laws of Reflection of Light Using a Plane Mirror
  7. To Study the Change in the Size, and Position of Image formed by a Convex Lens by Changing the Position of an Object (Candle) Placed in front of it
  8. To Study the Change in Current through a Resistor by Changing Potential Difference across it. Determine the Resistance of the Resistor by Plotting a Graph between Potential Difference and Current
  9. To Assemble a Household Circuit Comprising Two Bulbs (3 Volt each), Two Turn On-Off Switches, a Fuse and Two Dry Cells as Source of Power

10. To Determine the Speed of a Pulse Propagated through a Stretched String


  1. To Prepare an Aqueous Solution of Common Salt of a Given Composition
  2. Separation of Mixtures
  3. To Differentiate between a Chemical and Physical Change in a Given Process
  4. To Test the Presence of Water Vapours in Air
  5. To Test the Presence of Carbon Dioxide (CO2) in Air
  6. To find out the Approximate Percentage of Oxygen in Air
  7. To Test the Acidic/Basic Nature of a Solution with the help of pH Paper
  8. To find the pH of Fruit/Vegetables Juices with the help of pH Paper
  9. To Identify Washing Soda and Baking Soda out of the Samples of two White Powers
  10. To Carry out Chemical Reactions of Different Types


  • To Prepare a Temporary Stained Mount of (i) Onion Peel, Observe Under the Microscope and Record Observations
  • To Prepare a Temporary Stained Mount of Human Cheek Cells, Observe under the microscope and Record Observations
  • To Study and Draw Different Types of Plant and Animal Tissues with the Help of Permanent Slides : Plant tissues: Parenchyma and Sclerenchyma; Animal tissues: Blood, Striped muscle fibres and Nerve cells
  • To Study the Process of Osmosis through a Semipermeable Membrane
  • To Test the Presence of Starch in Green Leaves Exposed to Sunlight
  • To Observe that Oxygen is Released during the Process of Photosynthesis
  • To Show that CO2 is Given Out During Respiration
  • To Test the Presence of Starch and Fat in Given Food Samples
  • To Test the Presence of Adulterants in (a) Milk and (b) Metanil Yellow in Pulse
  • To Estimate the Level of Pollution in Terms of Particulate Matter by Comparing Leaf Samples Collected from Different Areas
  • To Observe Organisms from Given Pictures or Specimens or in the Surroundings (e.g. Crop Field, a Garden, or A Nearby Pond), Classify Them as Producers and Consumers, and Construct Their Food Chains and Indicate their Trophic Levels
  • To Study External Structural Adaptations in Any Two Organisms out of Cockroach, Fish, Frog, Lizard and Pigeon
  • This PDF is meant to tell you all about all the sort of work which you all have to keep In mind while making a practical file of 10th / 12th and my purpose is only to make your work easy. This PDF is strictly based on the NIOS Class Xth /XIIth Practical File in Hindi Medium or English Medium and includes only important content and guidelines prescribed for students of 10th or 10th +2 level.
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