Schooling · Class 6 · Science · Materials Around Us · Chapter on a page
CBSE Class 6 · Science · NCERT Curiosity
Materials Around Us: chapter on a page
A cut of Shishya's notes for this chapter: the first paragraph of the introduction and the key ideas, formulas and facts, common mistakes and quick revision lists, word for word. Nothing is added or reworded; the worked examples are left out (they are on the chapter page).
About the notes: Written by Shishya's AI on 26 Sept 2026 from the chapter's title and class level, in Shishya's own words — not a copy or summary of the textbook. Read the official chapter for the book's own text, activities and exercises.
This note's current text has no applied fact-check on record.
Mind map
Drawn from the same notes by a fixed rule (no AI): each label is the item's own words — its bold term, its label before a colon, a short formula as written, or its first words.
The mind map as a list
- Key ideas
- material
- Natural materials
- Man-made materials
- properties
- transparent
- float
- We choose materials for objects…
- Formulas and facts
- Material
- Natural materials
- Man-made or synthetic materials
- Transparent
- Translucent
- Opaque
- Soluble
- Watch out for
- Thinking all natural materials are…
- Confusing transparent with translucent
- Believing all objects that float are…
- Thinking man-made means harmful
- Saying the object's name instead of…
What this chapter is about
Look around you right now. Your desk, your water bottle, your clothes, the walls of your room — everything is made of some material. This chapter helps you understand what materials are, where they come from, and how we sort them into groups based on their properties.
Key ideas
- A material is the substance or matter from which an object is made. A chair can be made of wood, plastic, or metal — these are different materials.
- Natural materials come from plants, animals, or the earth. Examples: cotton from plants, wool from sheep, wood from trees, stone from the ground.
- Man-made materials (also called synthetic materials) are made by humans in factories. Examples: plastic, nylon, glass.
- Materials have different properties — qualities that describe how they behave. A property tells us if something is hard or soft, rough or smooth, shiny or dull.
- Some materials are transparent (you can see through them clearly, like glass). Some are translucent (light passes but you cannot see clearly, like frosted glass). Some are opaque (no light passes through, like wood).
- Some materials float on water while others sink. This depends on how heavy or light the material is compared to water.
- We choose materials for objects based on their properties. A raincoat is made of plastic because plastic does not let water pass through.
Formulas and facts to remember
- Material: The substance from which an object is made.
- Natural materials: Materials that come from nature — plants, animals, or the earth.
- Man-made or synthetic materials: Materials made by humans, usually in factories.
- Transparent: A material that allows light to pass through completely, so you can see objects clearly on the other side.
- Translucent: A material that allows some light to pass but scatters it, so objects appear blurry.
- Opaque: A material that does not allow any light to pass through.
- Soluble: A material that dissolves in water (like salt or sugar).
- Insoluble: A material that does not dissolve in water (like sand or chalk powder).
Common mistakes
- Thinking all natural materials are soft → Many natural materials like stone and iron ore are very hard.
- Confusing transparent with translucent → Transparent means you can see clearly through it; translucent means light passes but the view is blurry.
- Believing all objects that float are light in weight → A large wooden log is heavy but still floats because wood is less dense than water.
- Thinking man-made means harmful → Many man-made materials like glass are safe and very useful.
- Saying the object's name instead of the material → A chair is not a material; wood, plastic, or metal is the material the chair is made of.
Quick revision
- A material is what an object is made of — like wood, plastic, cotton, or metal.
- Natural materials come from plants, animals, or the earth; man-made materials come from factories.
- Transparent lets light through clearly; translucent lets light through but blurs the view; opaque blocks all light.
- Soluble materials dissolve in water; insoluble materials do not.
- We pick materials based on their properties — strength, flexibility, ability to block water, and so on.