Lab Practicle

Front 1

scientific method

Back 1

making observations, formulating hypotheses, doing experment and coming to a conclusion.

Front 2

hypothesis

Back 2

based on observations scientist come to a tentive explanation about what they are investigating

Front 3

testing a hypothesis

Back 3

must have a control and a sample.
if the control and the test results produce the same resultes the procedure is flawed or the hypothesis is false.

Front 4

data

Back 4

any functional information that comes to light

Front 5

conclusion

Back 5

the data will eather support or not suppport the hypothesis.

Front 6

theory

Back 6

encompassing conclusion based on many individual conclusions.

Front 7

cell theory

Back 7

all organisms are made of cells.

Front 8

control

Back 8

control group goes through all the steps but lacks the factor being tested

Front 9

which is more comprehensive a conclusion or a theroy?

Back 9

theroy

Front 10

data

Back 10

the information a scientist collect when doing experiments and making observations.

Front 11

what step in the scientific method follows experiments and observations?

Back 11

conclusion

Front 12

what is a sample that goes through all the steps of a experiment?

Back 12

control

Front 13

metric system

Back 13

is the standard system of measurement in science.

Front 14

meter

Back 14

(m) =1m
(m)=1000mm
(m)=100cm

Front 15

centimeter

Back 15

(cm)= 0.01m
(cm)=10mm
(cm)=1cm

Front 16

milimeter

Back 16

(mm)=0.001m
(mm)=1.0mm
(mm)=0.1cm

Front 17

micrometer

Back 17

(um)=0.000001m(10-6)
(um)=0.001mm
(um)=0.0001cm

Front 18

nanometer

Back 18

(nm)=0.000000001m (10-9)
(nm)=0.000001mm(10-6)
(nm)=0.0000001cm(10-7)

Front 19

how many centimeters are in a meter

Back 19

100

Front 20

how many millimeters are in a meter

Back 20

1000(milli means thousand)

Front 21

what are the two metric units of weight?

Back 21

gram (g)

milligram(mg)

Front 22

one gram equals how many milligrams.

Back 22

1000mg

Front 23

what are the metric units of volume.

Back 23

liter (l)

mililiter (ml)

one liter = 1000 ml

Front 24

how do you measer volume

Back 24

length x width x depth = volume

Front 25

meniscus means?

Back 25

water level

Front 26

what are the meaerments of temperature?

Back 26

fahrenheit (F)

Celsius(C)

Front 27

water freezes at?

Back 27

32 degrees F
or 0 degrees C

Front 28

water boils at ?

Back 28

212 degrees F
or 100 dgrees C

Front 29

convert F to C

Back 29

(1.8C)+32

Front 30

convert C to F

Back 30

(F-32)/1.8

Front 31

steromicroscope (dissecting microscope)

Back 31

studys entire objects at low magnification.

Front 32

compound light microscope

Back 32

examin small or thinly sliced objects under higher magnifaction.

Front 33

what does compound mean

Back 33

the use of two lenses the ocular lens and the objective lens.

Front 34

how are microghraphs produced?

Back 34

by a compound light microscope.

Front 35

what microscopes use beams of electrons to magnify an object?

Back 35

electron microscope.

Front 36

transmission electron microscope.

Back 36

is comparitive to tge compound light microscope.

a thinly sliced object is treated with heavy meatal salts to improve contrast.

Front 37

scanning eclectron microscope.

Back 37

is comparitive to the dissecting light microscope.
gives an image of the surface of an object.

Front 38

the difference between the electron and the scanning is.

Back 38

the electrons ability to show more deatail. the eclectron has more resolution power.

Front 39

resoulution means.

Back 39

the distance between two objects at wich they can stil be seen as two separate objects.

Front 40

scanning objective

Back 40

shortest objective lense
used to scan the whole slide.
4x the magnifying power.

Front 41

low-power objective

Back 41

views objects in greater detail
low power objective lens 10x

Front 42

high-power objective lens

Back 42

views objects in even greater deatil.
high power objective lens 40x

Front 43

what is parfocal?

Back 43

once an object is in focus in lowest power, it should almost be in focus in high power.

compound light micro. are parfocal.

Front 44

how do you acheive total magnification?

Back 44

ocular lens x objective lens.

Front 45

total x of scanning power objective.

Back 45

40 x

Front 46

total x of low power objective

Back 46

100x

Front 47

total x of high power objective

Back 47

400x

Front 48

depth of feild

Back 48

the area from top to bottom that comes onti focus while slowly moving the fine adjustment knob up and down.

Front 49

what type of microscope would you use to see euglena swimming in pond water

Back 49

coupund microscope

Front 50

what are ocular lenses

Back 50

eye peice

Front 51

what objective is used with total magnification of 100 requires the use of 10x ocular lens?

Back 51

low power objective

Front 52

what part of the microscope regulates the amount of light?

Back 52

diaphram

Front 53

what word is used if the object in low power will also be in focus at high power

Back 53

parfocal

Front 54

what adjustment knob is used in high power?

Back 54

fine adjustment knob

Front 55

if a euglena is swimming left what way should you move your slide to keep it in view?

Back 55

to the right

Front 56

what is the final item placed on a wet mount before viewing it with a light microscope?

Back 56

cover slip

Front 57

what object do you study with a steriomicroscope.

Back 57

entire small oaganism