The researcher finds found objects from surroundings.
The broken piece of vase must be thrown away by owner since the vase cannot be used anymore.
The broken piece of vase must be thrown away by owner since the vase cannot be used anymore.
Figure 1: Broken piece of vase
The coin must been dropped by owner since its small in size and easy to be fallen from pocket or purse.
Figure 2: 10 cents coin
The plumber or any other student who using PTFE for project, has dropped or misplaced it.
Figure 3: PTFE tape
The student must have thrown away the excess wire after used for project.
Figure 4: Part of metal wire
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