Units

Chapters and Topics

Total Marks

1. Chemical Substances-Nature and Behaviour

• Chapter -1 Chemical reactions and equations

Chemical reactions: Chemical equation, Balanced chemical equation, implications of a balanced

chemical equation, types of chemical reactions: combination, decomposition, displacement, double

displacement, precipitation, neutralization, oxidation and reduction.

• Chapter – 2 Acids, Bases and Salts

Acids, bases and salts: Their definitions in terms of furnishing of H+

and OHions, General properties,

examples and uses, concept of pH scale (Definition relating to logarithm not required), importance of

pH in everyday life; preparation and uses of Sodium Hydroxide, Bleaching powder, Baking soda,

Washing soda and Plaster of Paris.

Chapter – 3 Metals and non – metals

Metals and nonmetals: Properties of metals and non-metals; Reactivity series; Formation and

properties of ionic compounds.

16 Marks

2. World of Living

Chapter – 6 Life processes

Life processes: ‘Living Being’. Basic concept of nutrition, respiration, transport and excretion in plants

and animals.

10 Marks

3. Natural Phenomena

Chapter – 10 Light – Reflection and Refraction

Reflection of light by curved surfaces; Images formed by spherical mirrors, centre of curvature,

principal axis, principal focus, focal length, mirror formula (Derivation not required), magnification.

Refraction; Laws of refraction, refractive index.

Refraction of light by spherical lens; Image formed by spherical lenses; Lens formula (Derivation not

required); Magnification. Power of a lens.

Chapter – 11 Human eye and colorful world

Refraction of light through a prism, dispersion of light, scattering of light, applications in daily life.

14 Marks

Total Theory

40 Marks

Internal Assessment

10 Marks

Total

50 Marks