Units

Chapters

Marks

Chemical Substances

Acids, Bases and Salts

18 Marks

Chemical Reactions

Metals and Non-Metals

Carbon Compounds

Periodic Classification of Elements

Light

Reflection and Refraction

8 Marks

Natural Resources

Conservation of Natural Resources

8 Marks

The Regional Environment

Sources of energy

Our Environment

World of living

Life Processes

16 Marks

Control and Coordination in Animals and Plants

Reproduction

Heredity and Evolution

Effects of Current

Electric Current

10 Marks

Magnets

List of Experiments

To find 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 Sodium Bicarbonate Solution.

To determine the focal length of a concave mirror and a convex lens by obtaining the image of a distant object.

To study the properties of acids and bases HCl & NaOH by their reaction with:

i) Litmus solution (Blue/Red)

ii) Zinc metal

iii) Solid Sodium Carbonate

To study the dependence of current (I) on the potential difference (V) across a resistor and determine its resistance. Also, plot a graph between V and I.

To trace 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.

To determine the equivalent resistance of two resistors when connected in parallel.

To determine the equivalent resistance of two resistors when connected in series.

To show experimentally that light is necessary for photosynthesis.

To show experimentally that carbon dioxide is given out during respiration.

To prepare a temporary mount of a leaf peel to show stomata.

To study (a) binary fission in Amoeba and (b) budding in yeast with the help of prepared slides.

a) To observe 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.)

b) Arrange Zn, Fe, Cu and Al metals in the decreasing order of reactivity based on the above result

To perform and observe the following reactions and classify them into Combination Reaction, Decomposition Reaction, Displacement Reaction, and Double Displacement Reaction:

1. Action of water on quick lime

2. Action of heat on Ferrous Sulphate crystals

3. Iron Nails kept in copper sulphate solution

4. Reaction between Sodium sulphate and Barium chloride solutions

To determine the percentage of water absorbed by raisins.

To study the following properties of acetic acid (ethanoic acid):

i) odour

ii) solubility in water

iii) effect on litmus

iv) reaction with sodium bicarbonate