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Scientific Method
Scientific Method
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scientific method, #independent and dependent variables
Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
Cells that lack membrane bound organelles are known as eukaryotes
True
False
2
Louis Pasteur conclusively disproved the hypothesis of spontaneous generation.
False
True
3
Which scientist proved beyond any doubts that living things must come from living things
Pasteur
Darwin
Redi
Needham
4
A cell that contains no nucleus is called a /an
Prokaryote
Eukaryote
Protist
Fungi
5
Water and Carbon dioxide are both examples of?
compounds
solutes
mixtures
elements
6
Qualitative data are expressed as numbers obtained by counting or measuring.
True
False
7
An Organized way of using evidence to learn about the natural world is called
theory
biology
science
law
8
A controlled experiment allows the scientist to isolate and test
a single variable
two variables
several variables
a conclusion
9
A variable that is deliberately changed in an experiment is the
The control
The hypothesis
Dependent Variable
Independent variable
10
Which of the following is an example of an inference?
You see blood on the floor
There must have been a car crash as there was a loud noise
You smell smoke
Your power goes off in your house
11
Which of the following statements about the image below is NOT an observation? Use the picture
The insect has wings
The insect has 2 antennae
The insect has a pattern on its wings
The insect's pattern shows it is poisonous
12
A possible explanation for a set of observations or possible answer to a scientific question is a/an
a law
a theory
a conclusion
hypothesis
13
All the living things in a certain region is called a/an
community
ecosystem
population
organisms
14
Which of the following is an example of quantitative data?
gave off bubbles
light blue
smells sweet
5 cm
15
We want to see if the color of light has an effect on the length of plant leaves. The different colors of light are
the control
independent variable
dependent variable
hypothesis
16
The name given to the idea that life could arise from nonliving matter is called
spontaneous generation
evolution
big bang theory
pasteurization
17
Evolution, Global Warming and the Big Bang are all examples of theories.
False
True
18
water is a compound
True
False
19
You are testing what type of gasoline works best in your car. What is the independent variable?
price of gasoline
type of gasoline
how your car runs
type of oil
20
The independent variable in Redi's experiment was the type of meat.
False
True
21
All of the scientist tested experiments to disprove spontaneous generation EXCEPT?
REdi
Pasteur
Needham
Spallanzani
22
The independent variable in Redi’s experiment was the gauze that covered the jar.
True
False
23
After you design an experiment, the next step is to create a hypothesis.
False
True
24
Information gathered from observing a plant that grows 3cm over a 2 week period results in
theories
inferences
data
variables
25
A well-tested explanation that unifies a broad range of observations is a (an)
theory
hypothesis
conclusion
law
26
What is the dependent variable of the last experiment?
the length of roots
the types of flowers
the color of lights
the length of leaves
27
Which of the following is an example of qualitative data?
5 cm
turned green
3 feet
25 minutes
28
A logical interpretation based on prior knowledge and experience is called
observation
inference
data
theory
29
NEEDHAM used flies and meat to disprove spontaneous generation.
TRue
FAlse
30
The variable that is kept unchanged so that the results of an experiment can be compared is?
the error
the dependent variable
the independent variable
the control
