Unit 1 Lab Skills Question Preview (ID: 60226)
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Which lab equipment is made of porcelain so it can withstand high temperatures when heated?
a) crucible and cover
b) beaker
c) petri dish
d)
What is the name of the location where science experiments are conducted?
a) Cafeteria
b) Laboratory
c) Office
d)
Which statement is NOT true about the conclusion?
a) It either supports or rejects a hypothesis
b) It is made after the interpretation of data.
c) It is a tentative answer to the scientific problem.
d)
Convert: 25 cm = ? mm
a) 2.5
b) 250
c) 2500
d)
Graduated cylinder, thermometer, and platform balance are all examples of ______ equipment.
a) heating
b) measuring
c) safety
d)
A chemical container has a flame symbol on its label. What does the symbol indicate?
a) corrosive
b) flammable
c) irritant
d)
What variable is kept constant throughout the investigation?
a) controlled
b) dependent
c) independent
d)
Convert: 65 kg = ? lbs. (1 kg = 2.2 lbs)
a) 14.43 lbs
b) 143.3 lbs
c) 1433 lbs
d)
What is laboratory equipment made of glass called?
a) glassware
b) porcelain
c) lab equipment
d)
Which unit is used to express mass?
a) gram
b) liter
c) meter
d)
In the hypothesis: If the number of coils around the electromagnet increases, the number of paper clips attracted to it increases too. Which is the dependent variable?
a) size of the electromagnet
b) kind of batter used in electromagnet
c) number of paper clips attracted to the electromagnet
d)
When should the evaluation of the investigation be done?
a) during the conduct of the experiment
b) before the planning of the investigation
c) after the final interpretation and conclusion
d)
Which term describes data that is drastically different from the rest of the data?
a) average
b) outlier
c) graph
d)
Convert: 15 degree Celsius = ? degrees Fahrenheit
a) 35 Degrees Fahrenheit
b) - 59 Degrees Fahrenheit
c) 59 Degrees Fahrenheit
d)
True or False: A hazard is anything or any event that can cause harm to an individual.
a) True
b) False
c)
d)
What lab equipment is best used to transfer liquids to a narrow-mouthed bottle?
a) funnel
b) stirring rod
c) paper folded in half
d)
What is an observation?
a) A summary of the data collected from an investigation
b) The involvement of senses in describing an object, a person, or an event.
c) The standard system agreed upon by scientists and mathematicians.
d)
What kind of observation is an objective gathering of information, which focuses on numbers or measurement?
a) Qualitative
b) Quantitative
c) Subjective
d)
True or False: Celsius and Fahrenheit are both units are used to express time.
a) True
b) False
c)
d)
Which equipment is not used for heating?
a) alcohol lamp
b) Bunsen burner
c) tripod
d)
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