April 16, 2021

Scientific Knowledge

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CBSE Class 10 Science Practicals/Lab manuals

CBSE Class 10 Science Practicals/Lab manuals

CBSE Class 10 Practicals play an important role in developing students knowledge. All the discoveries and inventions done by scientists have been possible through the experiments performed in the laboratory. Thus, lab work is crucial for making the learning complete, especially for a subject like Science. CBSE has included the Class 10 Science practicals in secondary classes intending to make students acquainted with the basic tools and techniques used in the laboratory. With the help of this, they can successfully perform the experiments listed in the CBSE class 10 Science practical.

By performing the experiments of CBSE Class 10 Science, students will understand the concept in a better way as they can now see the changes happening in front of their eyes. Their basics will become stronger as they will learn by doing things. Here, we have provided all the necessary details that a class 10 student should know about CBSE class 10 Science practicals. From CBSE Science practical to Lab manual, project work, NCERT lab kit manual and important questions, all the information is provided in the elaborated form further in this page for class 10 students.

CBSE Class 10 Science Practicals

CBSE Class 10 Biology Practicals

1.      Experimentally Show That Carbon Dioxide Is Given Out During Respiration

2.     Identification Of The Different Parts Of An Embryo Of A Dicot Seed

3.     Preparing A Temporary Mount Of A Leaf Peel To Show Stomata

4.     Studying Binary Fission In Amoeba And Budding In Yeast With The Help Of Prepared Slides

CBSE Class 10 Chemistry Practicals

1.      Ph Of Samples

2.     Properties Of Acetic Acid Experiment

3.     Properties Of Acids And Base

4.     Reactivity Series Experiment

5.     Study The Comparative Cleaning Capacity Of A Sample Of Soap In Soft And Hard Water

6.     Types Of Reactions Experiment

CBSE Class 10 Physics Practicals

1.      Dependence Of Potential Difference Across A Resistor On Current With Graph

2.     Determination Of Focal Length Of Concave Mirror And Convex Lens

3.     To Determine Equivalent Resistance Of Resistors When Connected In Series And In Parallel

4.     To Find Image Distance For Varying Object Distances Of A Convex Lens With Ray Diagrams

5.     Tracing Path Of A Ray Of Light Passing Through A Glass Slab

6.     Tracing The Path Of The Rays Of Light Through A Glass Prism

All About CBSE Class 10 Science Practicals

In Class 10 board exam, Science practicals also carry marks. The class 10 Science theory paper is of 80 marks and 20 marks are allocated to internal assessment. The marking scheme for internal evaluation is showing below:

Internal Assessment Class 10 Science Marking Scheme

Periodic Assessment                       05 marks + 05 marks
Practical Work                                 05 marks
Portfolio                                            05 marks
Total                                                   20 marks

CBSE Class 10 Science Practical Syllabus

The practical have to conduct alongside the concept taught in the theory classes. In class 10 Science, students have a total of 15 practicals in the syllabus. The list of these practicals is provided below.

List of Experiments for CBSE class 10 Science Practicals

1.      A. Finding the pH of the following samples by using pH paper/universal indicator: (not included for this academic year)

(i) Dilute Hydrochloric Acid

(ii) Dilute NaOH solution

(iii) Dilute Ethanoic Acid solution

(iv) Lemon juice

(v) Water

(vi) Dilute Hydrogen Carbonate solution

B. Studying the properties of acids and bases (HCl & NaOH) on the basis of their reaction with:

a) Litmus solution (Blue/Red)

b) Zinc metal

c) Solid sodium carbonate

2.     Performing and observing the following reactions and classify them into:

A. Combination reaction

B. Decomposition reaction

C. Displacement reaction

D. Double displacement reaction

(i) Action of water on quicklime

(ii) Action of heat on ferrous sulphate crystals

(iii) Iron nails kept in copper sulphate solution

(iv) Reaction between sodium sulphate and barium chloride solutions

3.     Observing the action of Zn, Fe, Cu and Al metals on the following salt solutions:

i) ZnSO4(aq)

ii) FeSO4(aq)

iii) CuSO4(aq)

iv) Al2 (SO4)3(aq)

Arranging Zn, Fe, Cu and Al (metals) in decreasing order of reactivity based on the above result.

4.     Studying the dependence of potential difference (V) across a resistor on the current (I) passing through it and determine its resistance and after that plot a graph between V and I.

5.     Determination of the equivalent resistance of two resistors when connected in series and parallel.

6.     Preparing a temporary mount of a leaf peel to show stomata.

7.     During respiration Carbon dioxide releasing out show by experimentally.

8.     Study of the following properties of acetic acid (ethanoic acid):

i) Odour

ii) Solubility in water

iii) Effect on litmus

iv) Reaction with Sodium Hydrogen Carbonate

9.     Study of the comparative cleaning capacity of a sample of soap in soft and hard water.

10.  Determination of the focal length of:

i) Concave mirror

ii) Convex lens

by obtaining the image of a distant object

11.   Tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence. Measure the angle of incidence, angle of refraction, angle of emergence and interpret the result.

12.  Studying (a) binary fission in Amoeba, and (b) budding in yeast and Hydra with the help of prepared slides.

13.  Tracing the path of the rays of light through a glass prism.

14.  Finding the image distance for varying object distances in case of a convex lens and drawing corresponding ray diagrams to show the nature of image formed. (not included for this academic year)

15.  Identification of the different parts of an embryo of a dicot seed (Pea, gram or red kidney bean). (not included for this academic year)

CBSE Class 10 Science Lab Manual

For carrying out experiments in the laboratory, students need to know the proper use of the instruments. This CBSE Class 10 Science lab manual familiarises students with the available instruments in the laboratory and informs them about the do’s and don’t while performing experiments. Teachers also explain to students about all these things at the beginning of the session.

Each experiment in the CBSE class 10 Science lab manual is describing in the following points:

Aim: It explains the objective of the experiment.

Theory: It explains the basic principles, laws or theories on which the experiment is based.

Material required: Under this head, all the equipment, measuring devices and other material that is necessary to conduct the experiment are enlisting.

Procedure: Under this heading, steps to perform the experiment are mentioned in a proper sequence. Also, diagrams are drawn wherever required to present the pictorial view of the experiment.

Observation: All the observations are noted down while performing the experiments. For a better presentation, observations are noted in the form of a table. Proper units are expressed for each measurement.

Calculations: Calculation is done based on the observation by using the formulae. In some experiments, graphs are also drawn after the experiment.

Results and Discussion: The final result of the experiment is mentioned under this heading.

Precautions: All the precautions that are observed while conducting the experiments are mentioned here. Also, the sources of error which arise due to the limitation of equipment are stated under this heading.

Download CBSE Class 10 Science Laboratory Manual

 

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