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7th Life Science Nature of Science Flashcards | StudBud
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7th Life Science Nature of Science
7th Life Science Nature of Science
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7th Grade Nature of Science
Flashcards
22 cards
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Questions
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Answers
1
To determine how close to the true value an experimental value is, you would use
a precision calculation
a percent error calculation
a median
significan figures
2
Why is the law of gravity not a theory?
Scientists think that is could one day be proved incorrect.
Describes patterns in nature without explaining it
It does not describe an observed pattern in nature.
It describes a wide range of observations.
3
Why is it useful for scientists to develop models for the structure of atoms?
Atoms are too far away to study.
Looking at atoms directly can be harmful.
Atoms move too quickly to see.
Atoms are too small to study directly.
4
Using one or more of your senses to gather information is called
classifying
observing
inferring
predicting
5
All scientific explanations are based on
opinion
laws
controversy
empirical evidence
6
The horizontal axis of a graph runs
up and down
vertically
diagonally
left to right
7
The metric system is based on the number
10
12
1
100
8
Add a mass of 3.7 g to a mass 9.495 g the sum with the correct number of significant digits is
13.195g
13.2g
13.19g
13.20g
9
The statement, “Moonlight is caused by the moon reflecting sunlight” is an exampleof a(n)
scientific opinion.
scientific explanation.
experimental explanation.
historical fact.
10
Which of the following can be described as a simple system?
global weather
a food chain
ocean currents
a flight simulator
11
Which of the following would you measure using a graduated cylinder?
temperature
mass
lenght
volume
12
A group of parts that work together is called a
feedback
process
system
technology
13
Which of the following would you measure using a balance?
mass
temperature
volume
lenght
14
Why are line graphs said to be powerful tools?
Theyare easier to make than bar graphs.
Theycan show both numerical and categorical data.
They give more information than bar graphs.
They show how differentsets of data are related.
15
A scientific hypothesis must be
able to be controlled
correct
able to be tested
able to be manipulated
16
Which describes how opinion and scientific evidence are related?
Scientificevidence and opinion are the same thing.
Scientificevidence and opinion are not related.
Evidenceis an idea that may be confirmed by an opinion.
An opinion is an idea thatmay be formed from evidence.
17
A well-tested explanation for a wide range of observations or experimental results is called a
scientific inquiry
scientific law
scientific law
scientific theory
18
Trying to explain why a solar eclipse occurs is an example of
classification
scientific inquiry.
a prediction
an experiment
19
Galileo drew the following model of the solar system. What does this model show?
Some, but not all, of the planets move around the sun.
Earth and the other planets move around the sun.
Earth is the center of the solar system.
The distance between Earth and the sun
20
Carson discovered the bad effects of DDT. Who would have disagreed with her findings?
fishermen
bird watchers
farmers
animal right groups
21
Which of the following is an example of a scientific law?
All substances are composed of tiny particles called atoms.
All objects in the universe attract each other.
Mass and energy can be converted into each other
All cells are produced from other cells.
22
Which would be the most appropriate tool for modeling a complex system?
a calculator
global weather
pencil and paer
a computer
