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FTCE: 5-9 IC Sci 6

FTCE Integrated Cirrculum 5-9 Competency 6: Nature of Science and lab rules

Most common dependent variable time (t)
Body of knowledge systematically derived from study, observation, and experiments Science
Pseudoscience belief that is not warranted, such as witchcraft
Order of metric divisions .001 to 1000 .001 milli centi deci base deca hecto kilo 1000
2 most common graphs in science line graph and histogram
variable manipulated by experiment independent variable
components of a lab report title, abstract, purpose, hypothesis, control, observations, results, conclusion
scientific method 1. pose a question 2. form a hypothesis 3. doing the test 4. observe/record data 5. draw a conclusion
rules regarding dissections (non living) 1. use animals only from recognized sources 2. no decaying animals because of pathogens 3. rinse animals before touching 4. no sores/scratches/wounds 5. moral objections get an alternate assignment 6. Formaldehyde=carcinogen=>avoid!
uses sound waves to locate objects, especially underwater sonar
Rules on live dissection specimens 1. no mammalian vertebrates or birds 2. no physiological harm to any animal 3. handled in a safe and humane way 4. refusal to follow rules = suspended/fired
uses electrical charges of molecules and separates them based on size by pulling them through a gel box and attracting negative ions toward the positive side of the box and positive ions to the negative side of the box. Electrophoresis
Spins stuff super fast so the dense parts of the solution settles - used to separate blood into plasma and blood cells Centrifugation
uses principles of capillary action to separate substances like plant pigments - small molecules zip across the paper leaving pigment trails. Chromatography
gives qualitative data on color changes by using light absorption percentages Spectrophotometry
1. Treat all organisms as if pathogenic 2. Always maintain sterile conditions Rules for Microbiology experiments
1. Know locations of fire extinguishers 2. Secure/pull back long hair and sleeves 3. Don't touch the barrel of the burner Rules for using Bunsen burners
1. Turn the gas all the way up and make a spark with the striker 2. Adjust the air valve until you see an inner cone 3. Adjust the flow of gas to the desired flame height How to use a Bunsen burner
Used for precise measurements, should always be placed on a flat surface, measurement read at the bottom of the meniscus Graduated cylinder
Setting a balance to zero before using it tarring a balance
used to dispense precisely measured volumes of liquid buret
used to control the volume of liquid coming out of a buret stopcock
place a drop of water on the specimen and then put a coverslip on top of the drop of water, dropping the coverslip at a 45 degree angle to avoid air bubbles creating a wet mount slide
How do you determine total magnification? ocular number (usually 10x) times the objective number (usually 10x on low, 40x on high)
What should you rinse glassware off with before and after all experiments to keep everything sterile? distilled water
Chemicals are stored in accordance with what factor? reactibility
Created by: ubiquitoussong
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