40 terms

Biology Test 1 (safety-Microscopes)

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Terms in this set (...)

Beaker
Heat and mix chemicals

Does not measure volume accurately
Flask
Heat and mix chemicals that may release gases during reaction, or are likely to splatter if stirred or heated

Does not measure volume accurately
Test tube
Heat and mix small amounts of chemicals
Plastic pipette
Measure and transfer exact volumes of liquids
Hot plate
Heat chemicals found in beakers and flasks
Electronic balance
Determine the mass of an object
Triple beam balance
Determine the mass of an object
Graduated cylinder
Measure the volume of liquids accurately

It is important to get at eye level, and measure the bottom of the curve of the liquid, or the meniscus
Petri dish
Culture or grow microorganisms
Test tube holder
Pick up a test tube after it has been heated
Mortar and pestle
Grinds solids into powder
Tongs
Pick up heated materials, such as beakers, flasks, etc.
Funnel
Transfer liquids from on container to another without spilling
Spatulas
Transfer small amounts of solid chemicals from their containers
Stirring rod
Stir chemicals
Watch glass
hold small amounts of solids

Cover beakers during heating
Eye piece (ocular lens)
Part to look through to view the slide
Nosepiece
Supports the objective lenses
Objective lenses
Contains low and high power lenses
Stage clips
Hold slide in place
Stage
Where slide is placed
Light source
Projects light through diaphragm
Arm
Supports microscope and is used when caring the microscope
Course adjustment knob
Moves slide and objective lens closer together or further apart and brings slide into focus
Fine adjustment knob
Moves small distances and sharpens the focus of slide
Diaphragm
Controls the amount of light that passes through the slide
Base
Bottom of microscope that supports and is held when carrying the microscope
Calculation for Total Magnificaton
Total Magnification = Eyepiece magnification x objective lens magnification (Ocular lens)
How to carry a microscope.
Always use two hands-one under base and the other on the arm
When focusing a slide, always start on the ______power.
Lowest
Never allow objective lenses to ____________
Touch slide (Could scratch it)
Personal Safety
Long hair tied back, dangling jewelry, and loose clothing secured

Wear shoes that cover your toes and that have non-slip soles

Wash hands thoroughly after experiment
Chemical & Equipment guidelines
Keep a clean work area

Never pour chemicals down the sink unless the teacher says it is safe

Do not remove chemicals from class, drink, inhale, etc.

Report all unsafe conditions, injuries immediately to instructor

Do not leave experiments unattended

If chemical splashed in your eye...rinse it for at least 20 minutes
General safety guidelines
Pay attention and follow directions

No lab work is done without instructor's permission

Do not eat, drink, or chew gum

Know fire exit and location of safety equipment (fire blanket, eyewash, etc.)

Wear goggles when using glassware, chemicals, heat, etc.
Length
Distance between two points

Equipment used:
Ruler
Meter stick

SI Base Unit
Meter (M)
Mass
The amount of matter in an object

Equipment used:
Electronic balance
Triple beam balance

SI Base Unit
Gram (g)
Volume
The amount of space an object occupies

Equipment used:
Graduated cylinder

SI Base Unit
Liter (L)
metric unit prefixes
Convert units between kilo - milli
Use
King Henry Died By Drinking Chocolate Milk
Scientific notation
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