Unit 10 • Class 7Science and Technology (Sci.071)
Unit 10: Materials of Daily Use (दैनिक जीवनमा प्रयोग हुने वस्तुहरू)
एकाइ १०: दैनिक जीवनमा प्रयोग हुने वस्तुहरू
10.1 Acids, Bases, and Salts: Properties, indicators (litmus, phenolphthalein), neutralization; 10.2 Metals and Non-metals: Physical properties, conductivity, and uses (p. 298-328).