1. biology- the study of life or living matter in all its forms and phenomena (bio = life; ology =...
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Week 1 Vocab:
1. BIOLOGY- the study of life or living matter in all its forms and phenomena (bio = life; ology = the study of)
2. BIOHAZARD- a health risk posed by a pathogen used or produced in biological research
3. PRECISION- mechanical or scientific exactness
4. ACCURACY- freedom from error or defect
Week 1 Vocab:
5. MENISCUS- the convex or concave (curved) upper surface of a column of liquid
6. CORROSIVE- having the quality of acidity or eating away
7. GRADUATED CYLINDER- a narrow, cylindrical container marked with horizontal lines to represent units of measurement and used to precisely measure the volume of liquids
Week 1 Vocab:
8. MASS- the quantity of matter as determined from its weight or from Newton’s 2nd Law (F=ma)
9. VOLUME- the amount of space, measured in cubic units, that an object or substance occupies
10.FLAMMABLE- easily set on fire; combustible
Lab EquipmentCompetency 1.a
Graduated Cylinder
Used to make accurate measurements of liquid volumes.
MENISUS (see vocab) Bumpers- used to protect if tipped over, keep them near the top of the cylinder
Pipette
Used for exact (precise) volume measurements of liquids
Several different kinds
Plastic
Volumetric (Glass)
Balance (Triple Beam)
Used to measure masses very precisely.
Each beam measures a different mass unit
Bio BW (8/14)
Pick up a sheet from the counter. Choose a partner NEAR you (DON’T
CHANGE SEATS) and answer the questions on the back.
You may work alone if you want. Write your answers below the
questions. Hang onto it when you’re finish.
Don’t turn it in.
Thermometer
Used to measure temperature Celsius (C = (F-32) x 5/9) Kelvin (K = C + 273) Fahrenheit (F = C x 9/5 + 32)
Ruler
Used to measure length or distance
Beakers
Used to contain volumes of liquids. Measurements are not as precise as
graduated cylinders or pipettes Marks on the side indicate units of volume
Test Tubes
Clear glass tube used to hold small volumes of substances
Not very precise
Test Tube Rack
Used to hold test tubes upright.
Mortor & Pestle
Used for crushing and grinding substances
Erlenmeyer Flask
Most common flask Used to contain volumes
reaction solutions Not very precise, but
there are units of volume marked
Volumetric Flask
More precise than the Erhlenmeyer flask.
Has precise graduation volume markers on the neck of the flask
Florance Flask
Used to contain volumes of liquid substances
Not very precise Rounded bottom makes it
easy to tip over
Safety Goggles
Used to protect the eyes during experiments
Vents help keep goggles from getting foggy
Apron/Lab Coat
Used to protect clothing during an experiment
Tongs/Test Tube Holders
Used to hold hot or potentially hazardous equipment
Watch Glass
Used to cover beakers, especially if the substance inside is potentially hazardous
Stirring Rod
Glass rod used to stir liquids
Bunsen Burner
Produces a single gas flame, used for heating and sterilization
STRIKER- piece of flint equipment used to “strike” a Bunsen burner