Ncert class 8th Science chapter 1| curiosity | Ncert class 8 Science new Book

Curiosity in Science

Investigative process

Systematic investigation

Observation and experimentation

Asking “why” and “how” questions

Controlling variables

Root & Kite symbols

Everyday phenomena

Microorganisms

Heating effect of electric current

Magnetic effect of electric current

Force and motion

Pressure differences

Particulate nature of matter

Elements, compounds, mixtures

Reflection & refraction of light

Phases of the Moon

Calendars and celestial observations

Ecosystems & climate balance

Human impact on climate

Experiment design

Record‑keeping & conclusions