Common-Core/ Grade 7
Science MCQ Based On Comparing physical and chemical changes
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Common-Core Grade 7 - 7 Comparing physical and chemical changes
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When water evaporates, the chemical makeup of the substance is not changed.
In physical change, no new substance is formed whereas, in chemical change, a new substance is formed.
In a physical change, no new matter is formed whereas in a chemical change new matter is formed.
New Substance is formed.
In rusting of iron two substances react together to make a new substance.
In this process, zinc coating is applied to iron to protect it from rust.
This law states that the mass can neither be created nor be destroyed but it can be transformed from one form to another.
During burning a new substance is formed.
In the condensation of water, gas is converted into vapor.
In Physical change, chemical bonds do not break and in Chemical change,chemical bonds in the molecules break
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