Lab Manual - eScience Labs
Lab Manual - eScience Labs
Lab Manual - eScience Labs
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<strong>Lab</strong> 4: Introducon to the Microscope<br />
coverslip to draw away the water (this is called diffusion and there will be a lab on<br />
diffusion later in the series).<br />
5. If the specimen is already in liquid, place a drop in the middle of the slide and add the<br />
coverslip as you would for a dry specimen.<br />
Experiment 1: Virtual Magnificaon Exercise<br />
Materials<br />
• “How Big Is It?” demonstraon on Student Portal<br />
Note: Review the direcons for signing in to the Student Portal at the<br />
beginning of this manual if uncertain how to access this informaon<br />
Procedure<br />
1. Log into your <strong>eScience</strong> Student Portal account and locate the “How Big Is It” demonstra-<br />
on under the Introducon secon.<br />
2. Load the animaon and beginning with the head of a pin, increase the magnificaon by<br />
clicking the arrows below the picture. Note the relave sizes of the objects on the pinhead.<br />
3. Be sure to noce the magnificaon bar on the lower poron of the demonstraon that<br />
shows the magnificaon required to see the objects.<br />
Quesons<br />
1. At what magnificaon do you first noce the ragweed pollen?<br />
45
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