what is the most dangerous thing in a science lab?
TRANSCRIPT
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Tools and Procedures
What is the most dangerous thing in a science lab?
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Common Measurement System
Metric system – base 10 system
How big is this pillbug?
Length is measured in:
meterscentimetersmillimeters
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How long are these snails?
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Volume (liters, ml)
-how much space something takes up-usually a measure of liquids- use a beaker or graduated cylinder
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Mass - grams or kg
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Temperature (celsius)
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Analyzing Biological Data - involves charts, graphs, models, images
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Microscopes
- Scanning Electron Microscope (3D image)
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- Transmission Electron Microscope (flat) *both SEM and TEM can only image dead specimens
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Light Microscope
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Laboratory Techniques Cell Cultures- single cell grown on nutrients will divide and
form millions of cells
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Cell Fractionation - cells broken and parts are separated
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Check for Understanding:
1. What tool would you use to measure volume? ______________________
2. What UNIT would the mass of a person be measured in? ____________________
3. What type of electron microscope takes very thin images? _______________What type takes 3D images? ____________
5. What UNIT should you use to measure the length of a finger?