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Measurement & Scientific method
Why are peer reviews important?
0.000000623 is
Measurement & Scientific method
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metric, dimensional analysis, scientific method
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Answers
1
0.000000623 is
6.23 x 108
6.23 x 10-7
6.23 x 107
623 x 10-8
2
Why are peer reviews important?
data is checked for accuracy
to receive comments and suggestions
all are correct
to receive questions & criticism
3
The variable that is expected to change because of another variable is the
responding
manipulated
independent
controlled
4
In which step of the scientific method is informations obtained through the senses?
making observations
revising a hypothesis
drawing conclusions
analyzing data
5
If the number is more than one the exponent is a
positive number
negative number
6
What is a well tested explanation for a set of observations?
scientific law
hypothesis
none of the other 3 choices
scientific theory
7
How many meters are in gigameter?
1,000,000
1000
100
1,000,000,000
8
The one variable that the scientist changes in an experiment to test their hypothesis.
controlled
manipulated
responding
experimental
9
If new evidence does not support a scientific theory, then scientists
modify or discard the theory
make the theory into a scientific law
ignore the new evidence
take no action
10
What happens when data does not support the hypothesis?
start a new investigation
hypothesis is revised
data is altered to support hypothesis
data is incorrect so it is thrown out
11
How do you test a hypothesis?
develop a theory
run a controlled experiment
making an observation
raising a question
12
What happens when the data in an experiment does not support the hypothesis?
revise your hypthesis
throw out the data because it's wrong
alter the data so it supports your hypothesis
give up and start a new investigation
13
How many centigrams are in 1 gram?
1,000,000
10
1000
100
14
how many meters are in 1 kilometer?
1000
1,000,000
10
100
15
What is a statement that summarizes a pattern found in nature?
scientific theory
scientific law
fact
hypothesis
16
Which of the following measures mass?
gram
meter
liter
Newtons
17
An experiment in which only one variable is changed at a time is called a
controlled experiment
manipulated experiment
responding experiment
scientific experiment
18
How many micrograms are in 1 gram?
1000
1,000,000
100
1,000,000,000
19
What is the equation for finding density?
mass ÷ volume
mass + volume
volume ÷ mass
volume x mass
20
How many grams are in 1 megagram?
1,000,000,000
100
1,000,000
1000
21
What is peer review?
scientists copy other scientists' work
close friends of the scientist review his/her work
scientists examine other scientists' work
scientists' keep their work secret
22
Which of the following measures volume?
feet
liter
meter
gram
23
When is a theory developed?
after several many repeated experiemnts
after the hypothesis is formed
after a controlled experiment
after an experment
24
285,000,000,000 is
285 x 109
2.85 x 1011
2.85 x 1012
28.5 x 1013
25
An organized plan for gathering, organizing and communicating information is called
controlled method
scientific experiment
scientific method
scientific theory
26
How many deciliters are in 1 liter?
1000
1,000,000
100
10
27
Which of the following measures length?
liter
gram
meter
pounds
28
What is the SI unit for temperature?
Celsius
Farenheit
Kelvin
Both Celsius and Kelvin
29
How do scientists all over the world communicate their data?
use a universal translator
all communicate in English
use the SI system
convert different systems of measurement
30
How many nanoseconds are in 1 second?
1,000,000,000
1000
100
1,000,000
31
If the number is less than one the exponent is a
negative number
positive number
32
What is the equation to find Kelvin?
°C + 373
°C + 273
°C ÷ 273
°C - 373
33
What is an untested explanation of an observation or a proposed answer to a question?
scientific law
inference
hypothesis
scientific theory
34
What is a statement that summarizes a pattern found in nature with out trying to explain it?
controlled experiment
scientific law
hypothesis
scientific theoory
35
How many milliliters are in 1 liter?
1,000,000
1000
10
100
