CBSE-2019-Science lab activity book-Class-IX-PBQ’s- with 3 Practical Notebook-as per latest syllabus issued by cbse-vishvasbooks
CBSE-2019-Science Lab Activity Book –Class-IX-PBQ's-with 1 Practical-Notebook- as per latest syllabus issued by cbse-vishvasbooks
Science Lab Activity Book- Class-IX- With PBQ’s-Combo- Hardcover-Revised Syllabus-vishvasbooks
1. Aim : To Prepare :
(a) a true solution of common salt, (common) sugar and alum separately,
(b) a suspension of soil, chalk powder and fine sand in water separately,
(c) a colloid of starch and egg albumin in water separately and distinguish between these on the basis of :
(i) transparency, (ii) filtration criterion and (iii) stability.
2. Aim : To Prepare :
(a) a mixture and (b) a compound using iron filings and sulphur powder and distinguish between these on the basis of :
(i) appearance, i.e, homogeneity or heterogeneity, (ii) behaviour towards magnet,
(iii) behaviour towards carbon disulphide (a solvent) and (iv) effect of heat
3. Aim : To separate the components of a mixture of sand, common salt and ammonium chloride (or camphor) by sublimation.
4 (a) Aim : To carry out reaction between iron nails and copper sulphate solution in water and classify it as physical or chemical change
4(b) Aim : To burn a magnesium ribbon in air, record the observations and classify it as a physical or a chemical change.
4(c) Aim : To carry out the chemical reaction of zinc with dilute sulphuric acid, record the observations and classify it as a physical or a chemical change.
4(d) Aim : To heat copper sulphate crystals, record observations and classify it as a physical or chemical change.
4(e) Aim : To carry out chemical reaction of sodium sulphate solution with barium chloride solution in water (in the form of aqueous solutions), record the observations and classify it as a physical or chemical change.
DISASTER MANAGEMENT PROJECT BOOK Class-IX-CBSE-2019-20 CONTENTS: CHAPTER 1-:-Getting Acquainted with Disaster Management CHAPTER 2-:-Specific Hazards and Mitigation CHAPTER 3-:-Man-made Disasters…