Subject guide · Science

Science, explained like the world is your classroom

Padha World Science turns textbook lines into real understanding — why the sky is blue, how your heart pumps, what lightning really is — using examples from kitchens, farms and monsoon clouds, not just definitions. It covers Class 1 to 12 physics, chemistry and biology, aligned to the NEB curriculum.

What you'll learn

• Physics — motion, force, light, sound, electricity, magnetism and simple machines
• Chemistry — matter, atoms, elements, compounds, acids & bases, chemical reactions
• Biology — plants, animals, human body, health, inheritance and ecosystems
• Earth & environment — weather, climate, earthquakes, pollution and conservation

Topics covered

• States of matter, measurement and separation of mixtures
• Force, pressure, friction, motion and simple machines
• Heat, light, reflection, lenses and the human eye
• Sound, echoes and how we hear
• Electric circuits, bulbs, safety and electromagnets
• Atoms, molecules, periodic table basics and bonding
• Acids, bases, salts and neutralization in daily life
• Photosynthesis, respiration, nutrition and circulation
• Genetics basics, evolution and biodiversity
• Climate, plate tectonics and why Nepal has earthquakes

Frequently asked questions

Which classes do the Science lessons cover?

Class 1 to Class 12. Primary classes build the habit of observation and simple machines; middle and secondary classes cover physics, chemistry and biology in depth, matching the NEB curriculum.

Do I need a lab to learn Science on Padha World?

No. Every concept is explained with everyday examples and safe home observations. When your school has a lab, the written explanations will make the lab work easier to understand and record.

Can the AI Tutor explain diagrams?

Yes — ask it things like “describe the structure of the heart in words” or “explain the atom like I'm 9”, and it will walk you through the diagram step by step in plain language.