What phenomena include the following processes: candle burning, wind blowing,

What phenomena include the following processes: candle burning, wind blowing, sugar charring, leaf fall, rain, weathering of rocks, water boiling, ice melting, glassware cracking?

1) The physical body changes its shape, size, state of aggregation, moves in space, but its chemical composition remains unchanged: wind blowing (air movement), leaf fall (leaf fall), rain and ice melting (change in the state of aggregation of water), weathering of mountain rocks (grinding), water boiling (temperature change), glassware cracking.
2) Chemical – the chemical composition changes: candle burning (paraffin turns into carbon dioxide and water), leaf fall, if we mean the yellowing of the leaves associated with the destruction of chlorophyll.



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