Post on 16-Jan-2016
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Identifying Lab Equipment and Function
Compound Light Microscope
Magnifies very small objects (dead or alive)
Graduated Cylinder
Used to measure Volume (accurate)
State Test Question• Which of the following tools would a biologist MOST likely
use to help magnify specimens?• Hand lens and ruler• Microscope and hand lens• Camera and computer• Telescope and compass
• Which of these will give the MOST accurate and precise measurement of 15mL of liquid to be placed in a test tube?
• A 100mL graduated cylinder• A 25 mL graduated cylinder• A 10 mL beaker• A 50 mL beaker
Glass Slide
Supports an item being examined under the microscope
Coverslip
Covers materials on a microscope slide-placed on the slide at a 45º angle
Beaker
Holds liquids while they are being heated or stirred-doesn’t measure volume
accurately
State Test Question
• Which of the following shows
the BEST way to transport a
beaker of diluted hydrochloric
acid?
Test Tube Brush
Used to clean test tubes
Evaporating Dish
Used for heating solids
Striker
Used to ignite a burner
Funnel
Helps in transferring liquids to containers with smaller openings
Triple-Beam Balance
Measures Mass
State Test Question
Which of the following can NOT be used to measure volume?
• A. Balances• B. Beakers• C. Pipettes• D. Graduated cylinders
Test Tube
Holds liquids for observation or testing
State Test Question
When heating a test tube, it is important to---a. move it slightly so that the contents are
heated evenly.
b. tilt it slightly toward you so that you know when the contents are boiling.
c. stopper the tube so the contents will not spill.
d. tilt the tube away from you in case the contents splatter.
Safety Goggles
Protects Eyes
State Test Question
Eye protection should be used in the laboratory when---
A. reviewing the contents of the scientific supply area.
B. operating a compound microscope.
C. testing any hypothesis.
D. chemical fumes might be present.
Crucible Tongs
Used for picking up crucible and crucible covers and beaker
Mortar and Pestle
Used to grind solids into powders
Florence Flask
Used to store liquids
Erlenmeyer Flask
Used to store solutions
State Test Question
• Which of the following shows the correct laboratory procedure for mixing an acid with water in a flask?
Probe
Pointed object used to examine specimens
Dissecting Pins
Holds specimens on dissecting trays
Forceps
Used to hold or lift specimen
Medicine Dropper
Measures out drops of liquid
Petri Dish
Shallow dish used to culture bacteria
Hand Lens
Magnifies small objects
Crucible
Container used for strong heating
Test Tube Rack
Holds test tubes during observation or testing
Scalpel
Small sharp knife used to dissect
Pipette
Used for exact measurement of liquids
Stopper
Used to cap flasks containing liquids
Thermometer
Used to measure temperature
Dissecting Tray
Holds specimen for dissecting
Test Tube Clamp
Holds test tubes while heating
State Test Question
• Which of these pictures shows the correct way to pick up a heated test tube
Electronic Balance
Used for weighing substances
Bunsen Burner
Heats things up
Metric Ruler
Used to measure metric length
Dissecting Scissors
Cuts specimen to be studied
Inoculating Loop
Stirring Rod
State Test Question
• A scientist needs to determine the density of a solid cube. Which of the following tools can be used for the task?
• a. Triple-beam balance and calculator
• b. Ruler and beaker
• c. Calculator and ruler
• d. Triple-beam balance and graduated cylinder
Analysis and Conclusion
Which laboratory tools can be used to magnify small objects so they can be seen more easily?
Hand lens, MicroscopeWhich laboratory tool/tools is/are useful when
looking at the internal organs of an earthworm?microscope, scalpel, dissecting tray, probe, dissecting pins, safety goggles
Critical Thinking and Application
What tool or tools would be used to make each of the following measurements?a. Amount of milk in a small glass?
graduated cylinderb. Length of a sheet of paper?
metric rulerc. Temperature of a swimming pool?
thermometerd. Mass of a baseball?
triple-beam balancee. Mass of a rock?
triple-beam balance