Given below are some pictures. identify the kind(s) of changes each picture shows. Given reasons for your choice.
Given below are some pictures. identify the kind(s) of changes each picture shows. Given reasons for your choice.
(A) Undesirable change- Earthquake
Earthquakes are undesirable changes because these changes harm living beings.
(B) Chemical change-Seed germination
Chemical changes are permanent changes that lead to the formation of new substances and they are irreversible changes also. In seed germination, the seed converts into a plant and it cannot be reversed back to its original state.
(C) Physical change -Heating of iron rod
Physical changes are those changes in which the physical properties of a substance change without altering the chemical composition of the substance. When the iron rod is heated it will get red hot, but there is no change in the chemical composition.
(A) Undesirable change- Earthquake
Earthquakes are undesirable changes because these changes harm living beings.
(B) Chemical change-Seed germination
Chemical changes are permanent changes that lead to the formation of new substances and they are irreversible changes also. In seed germination, the seed converts into a plant and it cannot be reversed back to its original state.
(C) Physical change -Heating of iron rod
Physical changes are those changes in which the physical properties of a substance change without altering the chemical composition of the substance. When the iron rod is heated it will get red hot, but there is no change in the chemical composition.
