Physical: how it looks, temperature it boils, temperature it melts, is it brittle, is it stretchy , it is magenetic, conducts heat, can be dissolved, density, Chemical: explosion happen (combustion), new substance (material) is created , observed when matter changes, ability to chemically combine with other substances, flammability (can burn), can it rust? , reacts with oxygen, reacts with water, silver can tarnish,

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