6. The eggplant/apple in the experiment turned its color from white to brownish. Which statement is NOT TRUE?
A. The presence of oxygen caused change in its color.
B. The absence of oxygen caused change in its color.
C. The color of an apple/eggplant changed when it is exposed to oxygen in the air. *
D. There is oxidation that happened when apple/eggplant was sliced and exposed in the air.
7. Water is the primary cause of rust because water contains
A. Oxygen
C. carbon
B. Chloride
D. hydrogen
8. Joram noticed that when he mopped the floor using wet rugs, the moist in the floor disappeared after few minutes. What is the reason why the floor became dry?
A. presence of heat
C. presence of water
B. absence of heat
D. absence of temperature
9. When physical change in materials happened, there is
I. formation of new product or material
II. no formation of new product or material
III. formation of new shape
IV. formation of new color
A. I, III and IV
C. III and IV
B. II only
D. II, III and IV
10.Hannah observed that the left over foods on the table became watery, spoiled and had foul odor after 48 hours. What caused this change in the material?
I. presence of heat
III. presence of oxygen
II. absence of heat
IV. absence of oxygen
A. I and II C. I and III B. II and III D. II and IV
Pasagot po ng maayos bukas napo kac pasahan Thank you
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