Question

List of all practical class 10 science...

Answer 1

List of Experiments

Experiment 1. Finding the pH of the following samples by using pH paper / universal indicator:

a) Dilute Hydrochloric Acid

b) Dilute NaOH solution

c) Dilute Ethanoic Acid Solution

d) Lemon juice

e) Water

f) Dilute Hydrogen Carbonate solution

Studying the properties of acids and bases (HCl & NaOH) by their reaction with:

a) Litmus solution (Blue/Red)

b) Zinc metal

c) Solid sodium carbonate

Experiment 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 quick lime

(ii) Action of heat on ferrous sulphate crystals 70

(iii) Iron nails kept in copper sulphate solution

(iv) Reaction between sodium sulphate and barium chloride solutions

OR

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

a) ZnSO4 (aq)

b) FeSO4 (aq)

c) CuSO4 (aq)

d) Al2(SO4)3 (aq)

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

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

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

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

Experiment 7. Experimentally show that carbon dioxide is given out during respiration.

Experiment 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

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

Experiment 10. Determination of the focal length of :

i) Concave mirror

ii) Convex lens by obtaining the image of a distant object.

Experiment 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.

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

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

Experiment 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.

Experiment 15. Identification of the different parts of an embryo of a dicot seed (Pea, gram or red kidney bean).

Answer 2

I know that there are total 15 experiments but I dont know what they are......