Classify the following as chemical or physical changes:
$1$. Cutting of trees
$2$. Melting of butter in a pan
$3$. Rusting of almirah
$4$. Boiling of water to form steam
$5$. Passing of electric current through water and the water breaking down into hydrogen and oxygen gases
$6$. Dissolving common salt in water
$7$. Making a fruit salad with raw fruits
$8$. Burning of paper and wood

(N/A) Physical Change: These are changes where no new substance is formed and the chemical composition remains the same.
- Cutting of trees
- Melting of butter in a pan
- Boiling of water to form steam
- Dissolving common salt in water
- Making a fruit salad with raw fruits
Chemical Change: These are changes where new substances with different chemical properties are formed.
- Rusting of almirah (Iron reacts with oxygen and moisture to form iron oxide)
- Passing of electric current through water and the water breaking down into hydrogen and oxygen gases (Electrolysis)
- Burning of paper and wood (Combustion reaction)