Which material usually has lustre?
- a. Wood log
- b. Polished metal spoon
- c. Cardboard
- d. Cotton wool
Open sheet
Materials Around Us — Basics
Properties of materials: appearance, hardness, solubility, float, transparency.
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Sugar in water is:
- a. Insoluble
- b. Soluble
- c. A metal
- d. Opaque always as solid only answer
A glass window pane is mostly:
- a. Opaque
- b. Transparent
- c. Magnetic iron
- d. Always translucent only
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