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Chapter 1
Chapter 1
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1
The object that is manipulated in an experiment is called what?
responding variable
dependent variable
none of them
independent variable
2
Convert 15 mL to liters.
0.015 L
150 L
0.15 L
1500 L
3
Science and technology are ________________.
interdependent
opposites
unrelated
not connected
4
Which of the variables is independent and which is dependent?
c is the independent variable & w is the dependent variable
w is the independent variable & c is the dependent variable
5
This is a pattern in nature that always occurs.
hypothesis
theory
technology
law
6
Convert to scientific notation: 30500
3.05 x 104
30.5 x 103
3.05 x 10-4
30.5 x 10-3
7
Best graph to use for plotting data over a period of time?
pie
line
circle
bar
8
Convert to scientific notation:
3.5 x 104
35 x 10-5
3.5 x 10-4
35 x 105
9
If you were testing which dog breed could run the fastest what would be on the X and Y axis?
Speed X and dog breed Y.
Both Dog breed and speed both on X.
Dog breed X and speed Y.
Dog breed must be on the X and the date on the Y.
10
Scientific models can be useful in science for everything except:
testing a theory
making something understandable
making predictions
making experimentation more expensive
11
Choose ONE conversions that is INCORRECT
1 m = 1000 mm
200 cm = 2 m
1 g = 1000 mg
1 kg = 1000 mg
12
When do you start the scientific method?
When the question works.
When you have a question.
When you get the results.
When you have to do research.
13
What is a theory?
A representation of something.
A hypothesis.
A system of ideas that explains many related observations.
14
Which of the variables is independent and which is dependent?
a is the independent variable & c is the dependent variable
c is the independent variable & a is the dependent variable
15
What is the purpose of an experiment?
none of them
to communicate data
to test a hypothesis
to prove a scientific law
16
Convert: 25 cm = ______ m.
2.5
250
0.025
0.25
17
What is wrong with this picture related to safety?
She has red/orange hair
her hair is pulled back
she is wearing a lab coat
she does not have safety glasses on
18
What is a question to an answer that can be tested?
theory
hypothesis
law
curiosity
19
Safety is very important in science. All the following are important safety rules except:
always read directions
always follow proper lab procedures
listen to the teacher
mix chemicals randomly
20
What is the density of a bowling ball that has a mass of 10 kg and a volume of 0.5 m
3
?
20 kg/m3
10 kg/m3
2 kg/m3
5 kg/m3
21
Look at diagram A in the image, describe the precision and accuracy
accurate
precise
neither accurate or precise
both accurate and precise
22
Which of the variables is independent and which is dependent?
j is the independent variable & s is the dependent variable
s is the independent variable & j is the dependent variable
23
What can be proven with science?
When the volcano will erupt.
What a dog is thinking.
What the rock is made of.
What tree the bird will land in.
24
Convert to scientific notation: 0.0000234
23.4 x 106
2.34 x 10-5
23.4 x 10-6
2.34 x 105
25
Why do scientist use the Scientific Method?
To do a fun experiment.
To compare.
Fun!
To prove an answer to a question.
26
Why are models used in science?
They represent concepts that cannot be studied directly.
They are needed to organize the different types of science.
A scientific law cannot be proven without a model.
Scientists cant learn data without a model to represent it.
27
How do you observe in the scientific method?
your sences
touch
eyes
you don't
28
What is the best graph to use if you want to show the different ingredients in a box of cereal?
line
bar
data table
circle
29
convert from scientific notation: 2.51 x 10
-2
0.00251
2510.0
251.0
0.0251
30
15 mL equals how many decaliters?
0.015
1,500
150,000
0.0015
31
Choose ONE conversions that is INCORRECT
200 cm = 2 m
1 m = 1000 mm
1 g = 1000 mg
1 kg = 1000 mg
32
What is a scientific law?
Explanation of some aspect of the natural world
Explanation made on the basis of limited evidence
Observations that describes some aspect of the universe
33
These are things that can have an impact on the outcome of an experiment.
tests
results
variables
questions
34
Write 520 in scientific notation.
C) 5.2 x 103
B) 0.52 x 103
D) 5.2 x 102
A) 52 x 102
35
How many centigrams do you have if you are given 1500 milligrams?
15
15000
1500
150
36
Identify the next step: Observation, Questioning, ___________, Testing.
Develop theory
Analyze data
Hypothesis
Revise hypothesis
37
kilo- means what?
thousand
hundreth
thousandth
hundred
38
The ability to be as close to the actual measurement of an object is known as _____________.
accuracy
luck
precision
measurement
39
What accuracy and precision is represented in this model?
High accuracy, high precision
High accuracy, low precision
Low accuracy, low precision
Low accuracy, high precision
40
What is a scientific theory?
An educated guess
An advanced hypothesis
A trusted explanation of some aspect of the natural world
An accepted assumption
41
Convert from scientific notation. 1.23 x 10
-1
0.0123
0.123
12.3
123
42
What is technology?
Using science in ways nobody has ever thought of.
Using science because it’s science.
Applying science for impractical purposes.
Applying science for practical purposes.
43
Convert 50 cm to m?
500 m
50 m
.005 m
0.5 m
44
Which statement is true?
Science and technology can both lead to advances in each-other.
Science is independent of technology.
Technology is independent of science.
Science is not related to technology.
45
The order of the Scientific Method is....
Ask a ?, Observe, Make Hypothesis, Do Experiment, Get Data, Conclusion
Observe, Ask a ?, Make Hypothesis, Do Experiment, Gather Data, Conclusion
Ask a ?, Observe, Make Hypothesis, Gather Data, Do Experiment, Conclusion
Observe, ask ?, Make Hypothesis, Do Experiment, Conclusion, Gather Data
46
Which metric prefix means 1000 ?
deca-
deci-
kilo-
milli-
47
Why will the creation of the universe always be a theory?
You can't go back in time.
A model can't be made that big.
It is too difficult to understand.
People don't want to know.
48
Identify the the proper SI Units for: Length, Mass, Temperature, and Time.
millimeter, gram, Celsius, minutes
miles, gram, Kelvin, milliseconds
meter, kilogram, Kelvin, seconds
inches, pounds, Fahrenheit, microseconds
49
This figure displays ____ accuracy and ____ precision
high, low
low, high
low, low
high, high
50
What can't science prove from the below choices?
What came first the chicken or egg?
What is the largest dog breed?
Can cats cause some people to have allergies?
Is there a link between smoking and lung cancer?
51
Convert 15 km into cm.
15,000
0.00015
1,500
1,500,000
52
I get the following measurements, 45 cm, 45.2 cm, and 44.8 cm. The true measurement is 55 cm.
I have precision
I have accuracy
I have a good meter stick
I don't have precision
53
_____________ is a system of knowledge and the pathway to find that knowledge.
chemistry
technology
physics
science
54
Which of the variables is independent and which is dependent?
g is the independent variable & h is the dependent variable
h is the independent variable & g is the dependent variable
55
Definition of Accuracy
Measure of how close a measurement comes to the true value
A measure of how close of measurements to the actual value
The ability to be accurate
correct value for the measurement based on references
56
Find the metric conversion: 1000mg = ? g
100.08
7g
10.0g
1g
57
Find the metric conversion: 5.6kg = ? g
56
6500g
5600g
5600
58
What is the scientific method?
DajfKnakdjfS
Scientists secrets
Series of steps that scientists use to solve & awnser problems
59
Science begins with curiosity and often ends with __________________.
intuition
money
frustration
discovery
60
What is the volume of a marble that has a mass of 4 grams and a density of 2 g/cm3?
2 cm3
8 g.
8 cm3
2 g.
61
SI base unit for mass is the ________.
gram
miligram
centigram
kilogram
62
15 mL equals how many decaliters?
0.015
1,500
150,000
0.0015
63
What accuracy & precision is represented here?
High precision, low accuracy
Low precision, high accuracy
Low precision, low accuracy
High precision, high accuracy
64
What are the independent and dependent variables?
I: # of prize token D: # of games
I: # of games D: # of prize tokens
65
What accuracy & precision is represented here?
High precision, low accuracy
Low precision, high accuracy
Low precision, low accuracy
High precision, high accuracy
66
Convert to scientific notation:
3.5 x 104
35 x 10-5
35 x 105
3.5 x 10-4
67
What is the second most favorite type of movie?
action
sci-fi
comedy
romance
68
Scientific law is _________
a statement that predicts possible futures
an hypothesis.
a statement that summarizes a pattern found in nature.
proven hypothesis.
69
What is the Scientific Method ?
A Scientific Method is a method that only scientist use.
A Scientific Method is a method that is use only in laboratory
A Scientific Method is five steps
A Scientific Method is a method that scientist use to make result
70
55 meters converts to how many kilometers?
0.055
5500
550
55000
71
A representation of an object or event is called a
hypothesis.
model.
scientific law.
variable.
72
Convert to scientific notation:
35 x 10-5
3.5 x 104
35 x 105
3.5 x 10-4
73
deci- means what?
billionth
thousandth
hundreth
tenth
74
Billy picked up a ball with a density of 50 g/cm3 and a volume of 10 cm3. Mass?
500 g/cm3
5 g.
500 g.
500 cm3
