Question

which kind of change alters the shape of an object without changing what type of matter it is?
1 chemical change
2 gradual change
3 physical change
4 sudden change

Explanation:

A physical change modifies the physical properties (like shape) of a substance without changing its chemical identity. Chemical changes alter the matter's type, while gradual/sudden refer to the rate of change, not the nature of the matter itself.

Answer:

1. physical change