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Getting a Precise Measurement
Seyed Abdollah Shahrokni
Further Dilution
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Analyzing pH
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Checking Measurement
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A Student Watches a Gauge
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A Professor Demonstrates Measurement Equipment
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Diluting a Solution
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Students React to a Reaction
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Lecture at the Board
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Adjusting the Microscope Focus
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Adjusting the Microscope Slide
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Selecting a Slide
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Fingerprinting Demonstration
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Focusing on the Lecture
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Sign Language Interpreting in a Chemistry Lab
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Adjusting Eyepieces
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Peering through a Microscope
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Considering Slide Placement on the Microscope
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Examining a Fingerprinting Card
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Diluting into a Beaker
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A Professor Demonstrates Lifting a Fingerprint
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A Professor Explains the Lab Instrument
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Students Work in a Chemistry Lab
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Two Students Watch a Chemical Reaction
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A Student Dilutes to an Indicated Line
Seyed Abdollah Shahrokni