Class 6 Science Chapter 6 Materials Around Us Revision Notes

Quick revision notes for Class 6 Science Chapter 6, “Materials Around Us” — key facts and definitions at a glance for fast last-minute review. These Class 6 Science Chapter 6 notes are ideal for quick revision just before exams.

Key Definitions

• Matter: anything that has mass and occupies space.
• Lustre: the shine/glow of a material’s surface.
• Hardness: resistance of a material to scratching or denting.

Groupings at a Glance

• Lustre: lustrous (gold, steel, aluminium foil) vs non-lustrous (wood, cotton, chalk).
• Hardness: hard (iron, stone, diamond) vs soft (cotton, sponge, rubber band).
• Transparency: transparent (clear glass, water) · translucent (butter paper, frosted glass) · opaque (wood, metal, brick).
• Solubility (in water): soluble (salt, sugar) vs insoluble (sand, chalk powder).
• Behaviour with water: floats (dry wood, cork, plastic) vs sinks (iron, stone, coin).

Important Notes

• Glass is transparent, not translucent.
• The same object can be made of different materials; the same material can make different objects.
• Air is matter — it has mass and occupies space, even though invisible.
• This chapter’s core properties are lustre, hardness, transparency, solubility, and float/sink behaviour — “heat conduction” is not a formal section here.

Quick revision:

• Revision Notes for Class 6 Science Chapter 1: The Wonderful World of Science
• Class 6 Science Chapter 2 Diversity in the Living World Revision Notes
• Class 6 Science Chapter 3 Mindful Eating: A Path to a Healthy Body Revision Notes
• Class 6 Science Chapter 4 Exploring Magnets Revision Notes
• Class 6 Science Chapter 5 Measurement of Length and Motion Revision Notes

Written by Satish

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