SUBJECT - SCIENCE
CLASS- X
Complete your Science practical file as per the instructions.
INSTRUCTIONS:-
1. Write the below mentioned practicals in your practical notebook.
2. Write aim, materials required, procedure, observations, conclusion and precautions
on Ruled side ( with blue pen) of the practical notebook.
3. Aim, material required, diagram, observation table, graph and calculations should be
written on plain sheet (with pencil) of practical notebook.(Note:-No need of writing
theme/principle/theory of any practical in your practical notebook. Its only for
understanding purpose.)
4. Handwriting should be neat and legible.
5. Diagram should be drawn neat and scientifically correct.
6. Maintain index with the dates and page numbers on which your particular practical is
done.
CHEMISTRY
1. A. Finding the pH of the following samples by using pH paper/universal indicator:
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:
i. Litmus solution (Blue/Red)
ii. Zinc metal
iii. Solid sodium carbonate
2. Performing and observing the following reactions and classifying 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.
PHYSICS
3. Determination of the focal length of: - i) Concave mirror ii) Convex lens by obtaining the
image of a distant object
4. 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.
BIOLOGY
5. Preparing a temporary mount of a leaf peel to show stomata.
