Page 8 - ICSE Chemistry 8

Suggested Learning Resources Film on the collision of par cles • and the exchange of energy Chemicals and glass wares, • barium chloride, sodium sulphate, weighing balance, test tubes, dis lled water, fi lter paper, funnel and beaker List of physical and chemical • changes:  Forma on of curd form milk Curdling of milk   Ro ng of eggs  Rus ng of iron  Mel ng of ice  Forma on of vapours  Sublima on of camphor • Collec on of samples of some eleme

er. rac on and collision (Interpar cle space and erent mixtures.
Suggested Transac onal Processes Describing and discussing the main postulates of kine c theory of ma rac on varies from one ma er to another. Hence the condi ons of change of • Sta ng the law of conserva on of mass. Ac vity to show that there is no change in total mass when a physical and chemical change takes place. (If the reac on involves combus on in Total mass of reactants including the mass of atmospheric gases if any, will be equal to the Taking the example of reac on of barium

SYLLABUS • • Discussing interpar cle space and interpar cle a interpar cle a state of a ma er are different from the other.) presence of air, the mass of O 2 /N 2 is also to be considered.) mass of the products formed.  discussion. Bridging any gaps in their understanding. Building on children’s previous learning. • • • Revisi ng earlier concepts. Building on children’s previous learning. • • • different techniques. E.g.-  CaCO 3 and NaCl kerosene and water  •

Learning Outcomes Students will be able to describe the main • postulates of the kine c er; theory of ma explain the reason of • change of one state of the ma er to another and vice-versa on the basis of interpar cle space and interpar cle rac on and collision; a • defi ne and explain the law of conserva on of mass using an example. Students will be able to erent • illustrate diff changes occurring in nature with examples learned in previous classes; perform some

Main postulates of kine c molecular theory of er rac on and collision. er taught Physical and Chemical changes – Classifi ca on

Key Concepts • Explana on of change of state of the ma on the basis of interpar cle space and Law of conserva on of mass (statement and explana on with examples) Revise and review the topic on ma Geography, Biology, Languages Revision of ma er taught in earlier classes. Elements, compounds and mixture – a brief • Separa on of the components of a mixture Emphasis on the principle of separa on

• er. ma interpar cle a • Integra on Physics • in earlier classes. • with examples Integra on • • explana on •

Theme er 1. Ma 2. Physical and Chemical Changes 3. Elements, Compounds and Mixtures