Learning Poster: Materials Around Us | Science for Class 6 PDF Download

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Properties of 
Materials
Materials are everywhere, from wood to metal. Each has unique 
properties making it useful for different purposes.
Appearance of the Material
Lustrous Materials
These materials have shiny 
surfaces that reflect light. Most 
metals like copper, aluminum, 
and gold are lustrous; they 
sparkle!
Non-lustrous Materials
These materials do not shine. 
Wood, paper, and chalk are 
examples. They have dull 
surfaces that absorb light.
Remember: Some materials look shiny due to polish, but aren't 
always metals.
Which Materials Are Hard?
Hard Materials
These are difficult to compress, 
scratch, or bend. Examples:
Stone, rocks
Iron, steel
Glass
Diamond
Soft Materials
These are easily compressed, 
scratched, or bent. Examples:
Sponge, foam
Rubber erasers
Clay
Candle wax
Transparency: Can We See Them?
Transparent
Light passes 
through clearly. 
Examples: clear 
glass, water.
Translucent
You can see 
through, but 
objects appear 
blurry. Examples: 
frosted glass, thin 
cloth.
Opaque
Light is blocked 
completely; you 
cannot see 
through. Examples: 
wood, cardboard.
What is soluble?
Soluble Heroes!
Sugar and salt dissolve in 
water - they're soluble! They 
disappear but you can still 
taste them!
Insoluble Challengers!
Sand and pebbles don't 
dissolve - they're insoluble! 
They stay visible no matter 
how much you stir.
Weight and Volume: Heavy or Light?
Comparing Weights
Materials vary in weight even if 
they're the same size. Sand is 
heavier than cotton balls 
because particles are more 
dense.
Understanding Volume
Volume is the space something 
occupies. Two bottles can be 
the same size but hold different 
liquid amounts (e.g., 500 mL vs 
1 L).
Great job! You now understand Appearance, Hardness, 
Transparency, Solubility, Weight, and Volume. Keep exploring 
materials!