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Measurement and the Scientific Method
Measurement and the Scientific Method
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First Unit in Biology- Scientific method and the metric system
Flashcards
32 cards
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Practice quiz
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Questions
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Answers
1
conclusion
The manipulated variable
A summary of what was learned in an experiment and supported
A series of steps used to solve a problem
The variable used to change the experiment.
2
If you drive a distance of 100 meters, how many centimeters have you traveled?
10,000 cm
1000 cm
0.1 cm
100,000 cm
3
Give an example of a unicellular organism
bacteria
trees
fungi
babies
4
volume
how loud something is
The amount of space occupied by an object
the amount of matter in an object.
the curvature of water in a container due to surface tension
5
organelles make up and help to maintain
atoms
organs
organ tissues
cells
6
Dependent Variable
The variable that is measured
The variable that you will change in the experiment
The group that is to remain in its normal state
The variable that is being tested
7
Which is a characteristic of life that is not necessary for an organisms immediate survival?
organization
response to a stimuli
change through time
growth and development
8
Which of the following is NOT a characteristic of all living things?
photosynthesis
the presence of cells
reproduction
response to stimuli
9
State of matter that has definite volume but not shape
gas
liquid
plasma
solid
10
Independent Variable
the variable that you can change in the experiment
prediction that will occur during an experiment
variable that is measured
Used to test a hypothesis
11
The base unit for volume in the metric system is
liter
gallon
gram
meter
12
The sum of all the chemical reactions that occur in the body is called
metabolism
homeostasis
DNA
growth
13
What does the graduated cylinder read?
40 mL
39 mL
38 mL
39.9 mL
14
mass
the curvature of the water in a container due
the amount of space occupied by an object
the amount of matter in an object
how heavy an object it
15
Control
The variable that is mesured
A group that stays in its normal state
The variable that is changed
The group that is being tested on
16
Experiment
a series of steps used to test a problem
Used to test a hypothesis
a prediction of what will happen
A summary of what was learned
17
A cup has a mass of 525 mg. What is the cups mass in decigrams?
5.25 dg
0.052 dg
52500 dg
52.5 dg
18
0.0092 daL= __________ L
92.0 L
920 L
9.2 L
.092 L
19
A broad and comprehensive statement that is used to explain why something occurs is known as a
theory
model
hypothesis
law
20
If pennies have a mass of approximately 3g and a volume of 0.34 mL, what is their density?
6.35 g/mL
9.33 mL/g
8.82 g/ mL
7.75 g/ mL
21
What process did we use to measure the volume of the nails?
water displacemnt
centigram blance
graphing method
density formula
22
Hypothesis
a summary of observations
a prediction of what will occur in an experiment
guesstimation
educated guess
23
scientific method
a series of steps used to solve a problem
a summary of what was learned in an experiment
a prediction that will occur during an experiment
used to test a hypothesis
24
All living things maintain a balance within their cells and their environment through a process
called development
called homeostasis
called evolution
called growth
25
2.5 kg =________g?
2500 g
25,000 g
25g
0.25 g
26
Which is the correct way to show the organization of life from simplest to most complex?
cells, tissues, organs, systems, organism
organs, systems, tissues, organisms, cells
cells, organs, tissues, systems, organim
cells, tissues, systems, organs, organism
27
what is the formula for density?
D=m/v
D= v/m
D= m(v)
None of these are correct
28
which of the following is the smallest unit?
1 miligram
1 hectogram
1 decigram
1 gram
29
The prefix that represents the number 100 is known as
hecto
deca
mili
centi
30
What is metabolism?
the process by which an organisms becomes a mature adult.
the formation of two new cells from and existing cell
the process of substances being broken down to yield energy
ability to maintain a constant internal environment
31
quantitative data is
described in words
an observation
represented by numbers
a physical description
32
The hereditary instruction for all traits are located in the
tissues
organs
DNA
RNA