Question

Classify substance according to their properties water, soil, iron, copper, thermocol, coal, Coir, plastic, paper,rubber,

Answer 1

Answer:

Water - liquid, non metal

Soil - solid, non metal

Copper- solid, metal

Iron- solid, metal

Thermocol- solid, non metal

Coal- solid, non metal

Answer 2

Natural substances are water and soil. Metals are iron, copper. Natural mineral is coal. The man-made substance is thermocol, coir, plastic, paper, and rubber.  

Explanation:

• In this world, all substances can be broadly differentiated into two groups – natural substances that are readily available in their true state in the planet and the man-made substances that may have their source in the natural substances but have been acted upon by the men to be created.
• Natural substances are minerals and natural resources like water, soil, coal, copper, and iron. Man-made substances are plastic, coir, paper, thermocol, and rubber.

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