CBSE Class 7 Science — Chapter Summary

Science is a process and a way of thinking that welcomes curiosity, asks questions, and is open to the unknown. It connects observations from everyday life with careful experiments and deeper understanding. In Grade 7, science moves toward deeper questions about how things work, why events happen, a

Substances around us can be grouped as acidic, basic, or neutral. Their nature can be tested using natural indicators such as litmus, red rose extract, turmeric paper, and olfactory indicators like onion strips. Acids turn blue litmus red, bases turn red litmus blue, and neutral substances do not ch

Electricity can be used only when there is a complete path for current to flow. A portable electric cell has two terminals, and one or more cells can be combined into a battery to supply more energy for a longer time. A torchlight works because the cell, lamp, wires, and switch form a circuit. Incan