Question 1: Which is not a clue that a chemical change has happened?
A. new substance is formed
B. temperature change
C. size change
D. gas is produced
Question 2: Which of the following represents chemical change?
A. wood burning
B. ice freezing
C. sugar dissolving
D. wood being sanded
Question 3: Which of the following food changes represents a physical change?
A. toasting bread
B. baking a cake
C. making chocolate milk D. cooking an egg
Question 4: Which of the following is an example a chemical change?
A. water evaporating
B. melting ice
C. food rotting
D. boiling water
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