Sharpening a pencil is an example of physical change. The pencil as a material undergoes physical alteration which becomes sharper but its chemical component stays the same.
Burning paper is an example of chemical change. Wherein the paper itself changes its chemical components. Due to contact with fire its molecules agitated and became ashes.
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Answer:
Sharpening a pencil is an example of physical change. The pencil as a material undergoes physical alteration which becomes sharper but its chemical component stays the same.
Burning paper is an example of chemical change. Wherein the paper itself changes its chemical components. Due to contact with fire its molecules agitated and became ashes.
Explanation:
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