research lesson HALA

100問 • 1年前

vhivru

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are tests done to learn something or discover if something works or is true.

experiments

before conducting experiments, it is imperative to know the following: (3)

safety procedures, laboratory tools and equipment, different methods and techniques.

Store chemical waste in appropriate containers. Segregate chemical waste by…., and not alphabetically.

compatibility

Chemical waste must be labeled with the following information: (6)

1.full chemical name and quantity of the waste 2.for mixtures, each chemical must be listed 3.abbreviations, acronyms and ditto marks to replace words are not allowed. 4.date of waste generation 5.place of origin 6.bottle number assigned on corresponding work sheet, label must have the words "hazardous waste"

microorganisms and toxins derived from biological sources.

biological agent

These can be found widely in the natural environment and are also present in various work sectors:

virus, bacteria, fungi

describe the shape of bacteria, fungi and virus

bacteria are cylindrical, fungi are mushroom-like and have a spore-like shape, virus are spherical and has spikes.

defines the potential level of harm, injury, or disease to plants, animals, and humans that may occur when working with biological agents.

risk assessment

poses a low risk to personnel and the environment

BSL-1

poses a moderate risk to personnel and the environment

BSL-2

causes serious diseases in humans, animals, or plants that can result in serious economic consequences

BSL-3

contains biological agents that usually produce very serious diseases for humans, animals, or plants that are often untreatable/incurable

BSL-4

BSL 1 Microorganisms:

Micrococcus Leuteus, neurospora crassa, bacillus subtilis, agrobacterium tumifaciens

bsl 2 microorganisms:

mycobacterium, streptococcus pneumonia, salmonella choleraesuis

bsl 3 microorganism:

covid-19

differentiate endemic, pandemic and outbreak.

outbreak is in a house or barangay, pandemic is worldwide, and an endemic is in a country.

bsl 4 microorganism.

Spanish flu

experiments differ in: (4)

materials, functions or purpose, process and the gathering of ingredients.

it is essential to have proper knowledge of using standard laboratoru equipment and the basic techniques and operations to execute correct and precise experimentation and research. (T OR F?)

truUEEEE

if you don’t know how to use a certain equipment or tool:

look or ask for professional guidance

is a sterilization method that uses high pressure steam.

autoclaving

the ___ process works by the concept that the boiling point of water (or steam) increases when it is under pressure.

autoclaving

it is the process of heating and the temperature at which a liquid boils.

boiling point

required amount of pressure. the boiling point depends on this.

protocol

it should be regularly maintained and no cracked glasses or plastic must be used when performing this to prevent explosion or damaging the machine.

autoclaving

in autoclaving, liquids must be ___ full and media must be ___ full.

2/3, 1/2

Do not overload the autoclaving chamber (T OR F?)

TRUEEUEUEUE

in autoclaving, you must use what to prevent getting burned?

heat resistant gloves

a process of getting rid of microorganisms or decontaminate compounds.

autoclaving

the process of creating reducing the volume of a solvent by distributing it as a thin film across the interior of a vessel at elevated temperature and reduced pressure.

rotary evaporation

it promotes the rapid removal of excess solvent from less volatile samples.

rotary evaporation

used to isolate the pure culture of the organisms from a mixed population.

streak plate technique

the inoculum is streaked over the agar surface so that it "thins out" the bacteria. some individual bacterial cells are separated and well spaced from eachother.

streak plate technique

transference of compounds from a solid or liquid into a different solvent or phase. in the chemistry lab, it is most common to use liquid-liquid _____, a process that occurs in a separatory funnel.

extraction

used to seperate substances like oil, water, or acid base

extraction

traps any oil or water that may escape accidentally when extracting a liquid from another liquid.

funnel tap

catches the separated liquid in the process of extraction.

beaker

water density

1000kg/m^3

oil density

700-950kg/m^3

when oil mixed with water, which is on top and which is on the bottom?

water on the bottom bc of its higher density, and oil on top.

supports the separating funnel.

burette clamp

is a quantitative chemical analysis method that determines the concentration of an unknown solution by adding a known solution until the reaction is complete.

titration

the known solution is called:

titrator or titrant

unknown solution is:

analyte

the point of which the reaction is complete:

endpoint

the amount of substance in a defined space.

concentration

formula for titration:

final reading - initial reading =

mechanical process which involves the use of the centrifugal force to separate particles from a solution according to their size, shape, density, medium viscosity and rotor speed.

centrifugation

the particles are suspended in a liquid medium and placed in a centrifuge tube. the tube is then placed in a rotor and spun at a defined speed.

centrifugation

when placing a centrifuge tube in a centrifugation machine, another tube must be placed in opposite of it to _____\

maintain balance so that the machine doesn’t aggressively move arounf, resulting in it being damaged.

separation process used to purify or isolate temperature-sensitive materials. it is an alternative method of achieving _____ at temperatures lower than the boiling point.

steam distillation

this process involved adding water or steam to the distillation apparatus, lowering the boiling points of the compounds.

steam distillation

the only type of water required in steam distillation is:

distilled water

the required temp for using distilled water in steam distillation is:

100 degrees celcius

process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles.

filtration

what is this

titration

what

steam distillation

huh

filtration

hehe

extraction

instruments under research design (5)

observations, test, questionnaire, interview, documents

a research instrument wherein you are using the 5 senses

observation

an instrument wherein you are experimenting using laboratories

test

paper-and-pencil test

questionnaire

uses voice, field notes and voice recorders

interview

in a form of table and supports your experiment.

documents

under non experimental are: (2)

survey and interview

under interview are (2)

structured and unstructured

close ended questionn (yes or no?), follow a specific format of quesrion,questions are prepared ahead of time

structured interview

open ended questions, does not follow a specific format of question, questions are not prepared and on the spot

unstructured interview

a good research instrument posseses: (4)

validity and reliability, based on conseptual framework, suitable and relevant for the research topic, free of bias

allows an ipo model (input variable - process - output variable)

conceptual framework

overall plan, structure or strategy that guides a research project

research design

under chapter 3: (name)

research methodology (quantitative research design, sampling procedure and the sample, research instruments

it defines a logical plan to answer research questions through data collection, interpretation, analysis, and discussion

research design

foundation of the research

research design

serves as a blueprint for how researchers will conduct the study

research design

the critical part for the whole research process are under:

chapter 3 or research methodology

types of quantitative research design:

descriptive, correlational, experimental, quasi-experimental

aims to accurately and systhematically describe a population, situation, or phenomenon

descriptive

answers the question what, where and how but not why

descriptive

a non-experimental research that helps the researchers in establishing a relationship between two closely connected variables that requires two different groups

correlational research

2 aspects of correlational research

direction (negative) (positive) (Zero) and magnitude (Strong) (Weak) (Zero)

a quantative research dealing with the object or subject of a researcher in an exact manner anf look into the extent of the effects or influence of the treatment or the subject. two groups are involved (experimental and control group)

experimental research

employ a single group that recieve the treatment and has no control group. it only involves the experimental group.

pre-experimental

establish a cause-effect relationship within a group. both control group and experimental group are present

true experimental

the word ____ means similarity

quasi

it is similar to true, the differenc ebetween rhe two is the assignment of the control group here, the participants of the group are not randomly assigned.

quasi-experimental

differentiate popularion and sample

population; in general or the totality, overall population sample: specific, selected

random sampling: (4)

simple random sampling, systematic sampling, stratified sampling, cluster sampling

non-random (5)

convenience sampling, quota sampling, self selection, snowball, purposive

a random sampling wherein every member had an equal chance of being included.

simple random sampling

a random sampling wherein individuals are chosen at regular intervals

systhematic sampling

primarily determined by the convenience to the researcher. it refers to the availability or how easy-to-access samples are.

convenience sampling

also called accidental sampling because samples are chosen simply because they happen to be nearby during data collection.

convenience sampling

you select a pre-determined number of proportion of units or quota. these is where rschrs keep recruiting until they reach the specified quota for each subgroup.

quota sampling

occurs when individuals voluntarily choose to participate in a study.

self selection study

involves dividing the population into subpopu that may differ on important ways. you divide popul into subgroups called strata based on the relevant characteristics.

stratified sampling

doviding the population into subgroups called strata, each subgroup should have similar characteristics to the whole sample

cluster sampling

initial participants recruit others from their social circles

snowball sampling

100

in snowball sampling, researchers start with a small group anf let the sample grow organically through…

referrals

CONCHEM

CONCHEM

MAPEH

MAPEH

research

research

ESP

ESP

research lesson 1,2,3

vhivru · 59問 · 2年前

research lesson 1,2,3

59問 • 2年前

vhivru

mapeh music quarter 2

vhivru · 23問 · 2年前

mapeh music quarter 2

arts mapeh 9 q2

arts mapeh 9 q2

MAPEH PE

MAPEH PE

englush

englush

science

science

con chem

con chem

health mapeh

health mapeh

esp all

esp all

englisy

englisy

research all

research all

con chem lesson #1

con chem lesson #1

mapeh romantic

mapeh romantic

fil leson 1

fil leson 1

ap lesson 1 supply

ap lesson 1 supply

mapeh arts

mapeh arts

research lesson 2 HALA

vhivru · 100問 · 1年前

research lesson 2 HALA

mapeh pe

mapeh pe

English all I think

English all I think

mapeh health 3rd

mapeh health 3rd

science haha

science haha

esp

esp

reeearch pt 2 huhu

reeearch pt 2 huhu

research lesson all HALA

vhivru · 100問 · 1年前

research lesson all HALA

con chem

con chem

mapeh

mapeh

science

science

fil

fil

ict

ict

music 4

music 4

FILIPINO QUIZ

FILIPINO QUIZ

mapeh arts

mapeh arts

conchem 4

conchem 4

map

map

elecronic

elecronic

ele

ele

問題一覧

are tests done to learn something or discover if something works or is true.

experiments

before conducting experiments, it is imperative to know the following: (3)

safety procedures, laboratory tools and equipment, different methods and techniques.

Store chemical waste in appropriate containers. Segregate chemical waste by…., and not alphabetically.

compatibility

Chemical waste must be labeled with the following information: (6)

microorganisms and toxins derived from biological sources.

biological agent

These can be found widely in the natural environment and are also present in various work sectors:

virus, bacteria, fungi

describe the shape of bacteria, fungi and virus

bacteria are cylindrical, fungi are mushroom-like and have a spore-like shape, virus are spherical and has spikes.

defines the potential level of harm, injury, or disease to plants, animals, and humans that may occur when working with biological agents.

risk assessment

poses a low risk to personnel and the environment

BSL-1

poses a moderate risk to personnel and the environment

BSL-2

causes serious diseases in humans, animals, or plants that can result in serious economic consequences

BSL-3

contains biological agents that usually produce very serious diseases for humans, animals, or plants that are often untreatable/incurable

BSL-4

BSL 1 Microorganisms:

Micrococcus Leuteus, neurospora crassa, bacillus subtilis, agrobacterium tumifaciens

bsl 2 microorganisms:

mycobacterium, streptococcus pneumonia, salmonella choleraesuis

bsl 3 microorganism:

covid-19

differentiate endemic, pandemic and outbreak.

outbreak is in a house or barangay, pandemic is worldwide, and an endemic is in a country.

bsl 4 microorganism.

Spanish flu

experiments differ in: (4)

materials, functions or purpose, process and the gathering of ingredients.

it is essential to have proper knowledge of using standard laboratoru equipment and the basic techniques and operations to execute correct and precise experimentation and research. (T OR F?)

truUEEEE

if you don’t know how to use a certain equipment or tool:

look or ask for professional guidance

is a sterilization method that uses high pressure steam.

autoclaving

the ___ process works by the concept that the boiling point of water (or steam) increases when it is under pressure.

autoclaving

it is the process of heating and the temperature at which a liquid boils.

boiling point

required amount of pressure. the boiling point depends on this.

protocol

it should be regularly maintained and no cracked glasses or plastic must be used when performing this to prevent explosion or damaging the machine.

autoclaving

in autoclaving, liquids must be ___ full and media must be ___ full.

2/3, 1/2

Do not overload the autoclaving chamber (T OR F?)

TRUEEUEUEUE

in autoclaving, you must use what to prevent getting burned?

heat resistant gloves

a process of getting rid of microorganisms or decontaminate compounds.

autoclaving

the process of creating reducing the volume of a solvent by distributing it as a thin film across the interior of a vessel at elevated temperature and reduced pressure.

rotary evaporation

it promotes the rapid removal of excess solvent from less volatile samples.

rotary evaporation

used to isolate the pure culture of the organisms from a mixed population.

streak plate technique

the inoculum is streaked over the agar surface so that it "thins out" the bacteria. some individual bacterial cells are separated and well spaced from eachother.

streak plate technique

transference of compounds from a solid or liquid into a different solvent or phase. in the chemistry lab, it is most common to use liquid-liquid _____, a process that occurs in a separatory funnel.

extraction

used to seperate substances like oil, water, or acid base

extraction

traps any oil or water that may escape accidentally when extracting a liquid from another liquid.

funnel tap

catches the separated liquid in the process of extraction.

beaker

water density

1000kg/m^3

oil density

700-950kg/m^3

when oil mixed with water, which is on top and which is on the bottom?

water on the bottom bc of its higher density, and oil on top.

supports the separating funnel.

burette clamp

is a quantitative chemical analysis method that determines the concentration of an unknown solution by adding a known solution until the reaction is complete.

titration

the known solution is called:

titrator or titrant

unknown solution is:

analyte

the point of which the reaction is complete:

endpoint

the amount of substance in a defined space.

concentration

formula for titration:

final reading - initial reading =

mechanical process which involves the use of the centrifugal force to separate particles from a solution according to their size, shape, density, medium viscosity and rotor speed.

centrifugation

the particles are suspended in a liquid medium and placed in a centrifuge tube. the tube is then placed in a rotor and spun at a defined speed.

centrifugation

when placing a centrifuge tube in a centrifugation machine, another tube must be placed in opposite of it to _____\

maintain balance so that the machine doesn’t aggressively move arounf, resulting in it being damaged.

separation process used to purify or isolate temperature-sensitive materials. it is an alternative method of achieving _____ at temperatures lower than the boiling point.

steam distillation

this process involved adding water or steam to the distillation apparatus, lowering the boiling points of the compounds.

steam distillation

the only type of water required in steam distillation is:

distilled water

the required temp for using distilled water in steam distillation is:

100 degrees celcius

process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles.

filtration

what is this

titration

what

steam distillation

huh

filtration

hehe

extraction

instruments under research design (5)

observations, test, questionnaire, interview, documents

a research instrument wherein you are using the 5 senses

observation

an instrument wherein you are experimenting using laboratories

test

paper-and-pencil test

questionnaire

uses voice, field notes and voice recorders

interview

in a form of table and supports your experiment.

documents

under non experimental are: (2)

survey and interview

under interview are (2)

structured and unstructured

close ended questionn (yes or no?), follow a specific format of quesrion,questions are prepared ahead of time

structured interview

open ended questions, does not follow a specific format of question, questions are not prepared and on the spot

unstructured interview

a good research instrument posseses: (4)

validity and reliability, based on conseptual framework, suitable and relevant for the research topic, free of bias

allows an ipo model (input variable - process - output variable)

conceptual framework

overall plan, structure or strategy that guides a research project

research design

under chapter 3: (name)

research methodology (quantitative research design, sampling procedure and the sample, research instruments

it defines a logical plan to answer research questions through data collection, interpretation, analysis, and discussion

research design

foundation of the research

research design

serves as a blueprint for how researchers will conduct the study

research design

the critical part for the whole research process are under:

chapter 3 or research methodology

types of quantitative research design:

descriptive, correlational, experimental, quasi-experimental

aims to accurately and systhematically describe a population, situation, or phenomenon

descriptive

answers the question what, where and how but not why

descriptive

a non-experimental research that helps the researchers in establishing a relationship between two closely connected variables that requires two different groups

correlational research

2 aspects of correlational research

direction (negative) (positive) (Zero) and magnitude (Strong) (Weak) (Zero)

experimental research

employ a single group that recieve the treatment and has no control group. it only involves the experimental group.

pre-experimental

establish a cause-effect relationship within a group. both control group and experimental group are present

true experimental

the word ____ means similarity

quasi

it is similar to true, the differenc ebetween rhe two is the assignment of the control group here, the participants of the group are not randomly assigned.

quasi-experimental

differentiate popularion and sample

population; in general or the totality, overall population sample: specific, selected

random sampling: (4)

simple random sampling, systematic sampling, stratified sampling, cluster sampling

non-random (5)

convenience sampling, quota sampling, self selection, snowball, purposive

a random sampling wherein every member had an equal chance of being included.

simple random sampling

a random sampling wherein individuals are chosen at regular intervals

systhematic sampling

primarily determined by the convenience to the researcher. it refers to the availability or how easy-to-access samples are.

convenience sampling

also called accidental sampling because samples are chosen simply because they happen to be nearby during data collection.

convenience sampling

you select a pre-determined number of proportion of units or quota. these is where rschrs keep recruiting until they reach the specified quota for each subgroup.

quota sampling

occurs when individuals voluntarily choose to participate in a study.

self selection study

involves dividing the population into subpopu that may differ on important ways. you divide popul into subgroups called strata based on the relevant characteristics.

stratified sampling

doviding the population into subgroups called strata, each subgroup should have similar characteristics to the whole sample

cluster sampling

initial participants recruit others from their social circles

snowball sampling

100

in snowball sampling, researchers start with a small group anf let the sample grow organically through…

referrals