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Changes – Physical and Chemical — Science STD 7 — Question

Maharashtra BoardEnglish MediumSTD 7ScienceChanges – Physical and Chemical4 Marks
Question
Which changes shown in the pictures below are temporary.
1.

Image
2.Which of the changes are permanent?
3.In which did the original matter undergo a change?
4.In which the original matter remain unchanged?
5.In which of the changes was a new substance with a new property formed?

✓

Answer

Which changes shown in the pictures below are temporary.
1.(b) Removing iron nails with help of magnet
(d) Conversion of ice cubes into water.
2.Bud blooming into flower.
3.

  1. In permanent change
  2. Bud blooming into flower.


4.In temporary changes
(b) iron nails
(d) ice cubes.
5.

  1. Bud blooming into flower.
  2. Ice to water, Ice is in solid state, Water is in liquid state.

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