with oxygen present in the air, Activity 1 Physical or Chemical, what is the difference? Objective: Differentiate physical change from chemical change. Note: Do this activity with the supervision of your parent or guardian. Material: paper, match and small basin Procedure: 1. Get a piece of paper and crumple it. 2. With the supervision of your parent, find an open space and safely burn the crumpled paper in the metal basin. Complete the table to differentiate physical change and chemical change. Material Appearance before the activity Appearance after the activity Differencels in appearance​