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8th Grade Chapter 2 Review Flashcards | StudBud
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8th Grade Chapter 2 Review
8th Grade Chapter 2 Review
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Pearson Interactive Science Course Three Chapter 2 Review
Flashcards
30 cards
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Practice quiz
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Host live
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Questions
30
Answers
1
The desirable results of building a landfill are the landfill's _____.
benefits
political concerns
costs
economic concerns
2
Understanding the world requires both scientific and
pseudoscientific
ways of knowing.
True
False
3
The pollution produced by a coal-burning plant is part of the planet's _____.
political concerns
cost
benefits
economic concerns
4
When you observe, you use one or more of your senses to _____.
calculate equations
compile data
gather information
write a scientific article
5
A model is any representation of an object or _____.
data
a process
an opinion
an investigation
6
Empirical evidence is data and observations that have been collected through _____.
scientific processes
the Internet
the imagination
inferring
7
A well-tested explanation for a range of observations and experimental results is a(n) _____.
Model
Observation
Scientific theory
Scientific law
8
Scientists may use a computer to keep track of the variables in a complex _____.
model
program
system
feedback
9
Horoscopes determine personality traits based on birth date. Horoscopes are an example of ___
science
empirical evidencepseudoscience
pseudoscience
a political concern
10
Reasoning based on
opinions
is objective reasoning.
True
False
11
Consumers want to purchase safe cars safe. Which is a scientific invention promoting safety?
Clean gasoline
Cup holders
Fast cars
Air bags
12
A scientific theory may be _____ to reflect new information or fit new observations.
ignored
discarded
tested
revised
13
Which is an example of a political concern affecting science?
The Everglades providing fresh water for Florida
Congress passing a law about animal treatment for research
Doctors washing their hands before seeing patients
Crows can recognize human faces
14
The planets in the Earth's solar system revolve around the sun is an example of a(n) _____.
Scientific theory
Scientific law
Process
Hypothesis
15
Which best describes a scientific law?
Educated guess
statement that describes what might happen some of the time
Describes what is expected to happen all the time
Describes all of the procedures that scientists must follow
16
Science can help people in their economic lives as _____.
voters
soldiers
consumers
politicians
17
A pseudoscience is not a way of knowing but is a set of
beliefs
.
True
False
18
Input, output, and process are parts of a(n) _____.
system
model
assumption
hypothesis
19
The mercury cycle, water cycle, and rock cycle are all examples of _____.
systems
processes
models
feedback
20
To make decisions that are well informed, you should first analyze the __________.
Objective and subjective reasons
Inputs and outputs
Costs and benefits
processes and feedback
21
A _____ describes an observed pattern in nature without trying to explain it.
Scientific law
Scientific investigation
Model
Scientific theory
22
Ideas that people have about how people should earn a living and spend money are called _____.
Social concerns
Political concerns
Artistic concerns
Economic concerns
23
Models can help a scientist understand a system's __________.
theories
assumptions
investigations
processes
24
Why might scientists build a model of the Earth like the one shown here?
to show the depths of the ocean
to show the layers of the Earth
to show the color of the continents
to show pressure inside of the Earth
25
Ideas people have about how they should treat the environment are _____.
scientific concerns
social concerns
political concerns
economic concerns
26
What logical conclusion can be drawn from this graph of the distance lava traveled over time?
The speed of lava decreases over time
All lava flows at the same rate of speed
The speed of lava increases over time
Lava never changes speed
27
Scientific reasoning is characterized by
subjective
reasoning.
False
True
28
A system is a group of parts that work together to _____.
make observations
design a graph
perform a function
follow a process
29
Scientists test their ideas about things they cannot observe directly by _____.
analyzing systems
writing theories
gathering evidence
building models
30
Science and its methods are characterized by a(n)
chaotic
approach to learning about the world.
True
False
