AnswersLPISD Earth Systems A - CRHypotheses, Theories, and Laws

Analyzing Data Answers

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1
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Which phrase describes a model in science?

A
a structure that is always built to be an exact copy of an object
B
a structure that is used to represent a complex system
C
several structures that always represent different things
D
something that is unique and does not imitate an object
2
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Which statement identifies a benefit of using electronic measurement tools instead of manual tools?

A
Electronic measurement tools store large volumes of data in a very small space.
B
Electronic measurement tools accurately store a large volume of data very quickly.
C
Electronic measurement tools display data on a screen after waiting for several minutes.
D
Electronic measurement tools contain software that helps process data precisely but slowly.
3

Which statement identifies a limitation of models?

A
Models may be oversimplified.
B
Models describe scientific observations.
C
Models represent all aspects of an object.
D
Models are always accurate depictions of a system.
4

What is one reason that scientists who study weather need extremely advanced technology?

A
to anticipate changes in weather patterns
B
to remove the need to make forecasts several days in advance
C
to monitor weather events restricted to one region
D
to account for one factor at a time that affect weather patterns
5

Which is one of the purposes that technology serves in science?

A
It illustrates complex systems.
B
It helps create new science problems.
C
It assists in data collection.
D
It simplifies representations of real objects.
6

Which statement best describes why computer models are useful in science?

A
They can store and process data to make accurate weather predictions.
B
They are used to create more complex representations of large systems.
C
They cannot be revised after they are developed, tested, and shared with others.
D
They can be used to accurately make predictions without scientific evidence.
7

Alana wants to measure the speed at which drops of precipitation fall to the ground in Los Angeles.Which statement identifies a way Alana uses technology to complete her experiment?

A
She observes daily rainfall data from multiple weather stations throughout the city.
B
She graphs the relationship between rainfall speed and time using graphing paper.
C
She analyzes a map to determine different places to collect rainfall for the study.
D
She estimates how fast rain falls by studying the sky at different locations in the city.
8

In which task is a camera the most useful?

A
to measure the length of the leaves of a plant
B
to predict the star count over a broad area
C
to measure the thickness of different coins
D
to predict the number of people that live in a community
9

Luca wants to identify and quantify the chemicals causing air pollution in a city, but he is using a manual air sampler to collect air samples.Why should he update his current sampler to an electronic one?

A
to maintain the current way air sampling data are stored
B
to diagram exactly what portions of the city are affected by air pollution
C
to make predictions about air pollution that are precise but not accurate
D
to account for broad-scale factors that affect the number of chemicals identified
10

Which item is used as a type of model?

A
research data
B
illustration
C
observation
D
report

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