Question

is cooking an egg a physical or chemical change

Answer 1

Evidence - What did you observe in the video that tells you the egg is cooking? *Imagine you were actually cooking the egg: what would you see, hear and smell?

Answer 2

Reasoning - How does your evidence support your claim about the cooked egg?

Answer 3

The egg white and yolk gradually changed from a liquid state to a solid state. The egg white turned from transparent to translucent and then opaque, while the yolk became thicker and change from a runny consistency to a more solid and cooked texture.

The observation that the egg white and yolk change from a liquid to a solid state indicates a physical change. This change is due to the denaturation and coagulation of proteins, which is a physical process.