classify the following as reversible or irreversible changes : opening of a bud , sharpening of pencil,dropping and breaking of a plastic toy, curdling of milk
Answers
Answer:
- Irreversible change
- Irreversible change
- Irreversible change
Irreversible change...
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The classification of the given things as reversible or irreversible changes,is as follows -
• Opening of a bud is an irreversible change.
- The bud is the previous biological stage of a flower.
- The bud opens to convert into a flower and a flower cannot change into bud.
- That's why it's an irreversible change.
• Sharpening of a pencil is an irreversible change.
- When we sharpen a pencil,the length of the pencil is decreased.
- And,we cannot increase that length.
- That's why it's an irreversible change.
• Breaking of a plastic toy is an irreversible change.
- When a plastic toy is broken we can repair it with the help of the adhesive gum.
- But we cannot get the toy as it was before.
- That's why it's an irreversible change also.
• The curdling of milk.
- This is an chemical chage.
- And,like the most other chemical chages,it is an irreversible change.