Question

Fill in the blanks:
1. A physical change is a _____ change.
2. Matter expands on ____ .
3.____ expand the least on heating.
4. In an ____ change, energy is absorbed.​

Answer 1

1) A Physical changes is affecting the form of a chemical substance.

2)solid, liquid and gas

3) solids

4) reaction

Answer 2

Answer:

1) change which changes the form of an object

2) Heating

3) Solids

4) chemical