High school students using a computer interfaced pH meter to collect data for a biology/chemistry class lab investigation. The students are measuring the pH of various household liquids. Safety goggles were not required since none of the chemicals were hazardous.
| px | px | dpi | = | cm | x | cm | = | MB |
Details
Creative#:
TOP22132316
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
No
Property Release:
No
Right to Privacy:
No
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