Independent practice material. Not affiliated with the University of the Philippines and not official UPCAT content. Official UP Office of Admissions site

UPCATReviewer

UPCAT Science practice question 21: Which of the following is a physical change?

Correct answer

A. Ice melting into liquid water

Melting changes state but not chemical identity. The other three form new substances and are chemical changes.

Which of the following is a physical change?

  1. Ice melting into liquid waterCorrect
  2. Iron rusting in humid air
  3. Wood burning in a stove
  4. Milk turning sour

Why A is correct

Melting changes state but not chemical identity. The other three form new substances and are chemical changes.

Practice this section as a quizMore Chemistry questions

Same topic