AnswersTX-Earth and Space Science AUnit Test

Unit Test — Unit test Answers

21 verified answers
1
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Which is an example of a destructive force that shapes Earth’s surface?

A
clouds
B
volcanoes
C
wind erosion
D
sediment deposits
2
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What is a main reason why the scientific model of atoms is considered a theory rather than a law?

A
It has been proven as a fact.
B
It has been changed over time.
C
It predicts but does not explain.
D
It has stayed the same for a long time.
3

A scientist collected the following data, which show how the pressure of water vapor changes with temperature.Temperature (°C)Pressure (mm Hg)04.5109.62019.1 30 33.24058.75095.6What would a scientist do to best communicate these data to other scientists in a presentation?

A
Replace the table with text highlighting pressures.
B
Change the unit of pressure to atm.
C
Make a graph for better visual representation.
D
Display only rows 1, 3, and 6 of the data to simplify results.
4

Chris is about to do an experiment to measure the density of water at several temperatures. His teacher has him prepare and sign a safety contract before beginning the experiment. Which item is most likely part of the safety contract?

A
Understand how to deal with water safely in the lab.
B
Bring an electronic copy of the MSDS on a personal laptop.
C
Do not discuss the experiment with other students in the lab.
D
Inspect the glassware for cracks or chips prior to beginning the lab.
5

The table shows five items that a person may consider including in a safety contract. Item numberItem1Label all containers.2Tie long hair back.3Bring a cell phone to the lab in case of emergency.4Bring a small laptop computer to the lab to use MSDS online.5Wear safety goggles at all times.Which three of the five items would be best to include in a safety contract?

A
1, 2, and 3
B
1, 2, and 5
C
2, 3, and 4
D
3, 4, and 5
6

Which is one college class that a student would most likely take to become an oceanographer?

A
marine biology
B
chemical engineering
C
foundations of physics
D
human anatomy
7

When an experiment is replicated, how should the results of the two experiments compare?

A
The results of the first experiment should be less accurate.
B
The results of the second experiment should be less accurate.
C
The results of the experiments should be similar.
D
The results of the experiments should be one hundred percent certain.
8

The images show how telescope technology has advanced over time.Which telescope was first used to observe the skies?

Question illustration
A
Galileo’s telescope
B
Hubble Space Telescope
C
Gran Telescopio Canarias
D
Leviathan of Parsonstown
9

A scientist wants to use a model to help present the results of his detailed scientific investigation. Why would a model be useful?

A
because the model makes the concepts easier to understand
B
because the model is easy to put together and to use
C
because the model prevents other scientists from asking questions
D
because the model requires the audience to pay full attention to it
10

Which is a scientific claim?

A
At least 75 percent of the class will pass the physical science test today because they studied more than two hours for it.
B
According to the star of the number-one teen TV show, crushed rosemary and olive oil spread over pimples will draw out the bacteria and prevent scarring.
C
Plants fertilized once per week with Super Plant Food Formula have been shown in testing to produce twice as much fruit as plants that are not.
D
Placing half-filled one-gallon jugs of water out on the lawn prevents moles from occupying the space underground.
11

Which describes something in nature and predicts how it will behave without explaining why?

A
law
B
theory
C
hypothesis
D
data
12

Which statement describes an advantage of models?

A
Models can be used to communicate and test designs ideas.
B
Models always show the exact size of a system.
C
Models have the ability to develop into complex systems.
D
Models are useful for developing scientific methods.
13

The table shows results of an experiment that was replicated.

Question illustration
A
They are neither precise nor reproducible.
B
They are precise but not reproducible.
C
They are accurate and reproducible.
D
They are accurate but not reproducible.
14

Scientists in a particular field strive for the same quality of work because they know their peers will be reviewing their scientific claims. What does this review process help ensure?

A
standards of the profession
B
publication in scientific journals
C
resistance to new information
D
access to university databases
15

Which best describes the purpose of bar graphs?

A
They show changes over a period of time.
B
They compare quantities for particular categories.
C
They show the relationship among parts of a whole.
D
They compare ranges as continuous data.
16

Analyze the graph.

Question illustration
A
increasing parking meters
B
increasing traffic signals
C
increasing places to park bikes
D
decreasing bike-repair shops
17

Scientists are studying cell-to-cell communication in a human spleen.How would scientists most likely use technology during this study?

A
to draw a diagram showing how cellular communication occurs
B
to predict what triggers cells-to-cell communication
C
to determine safety procedures to be used in the laboratory
D
to determine the number of visible cells by counting them
18

A team of scientists is researching the best way to use tides to produce energy. One team includes environmental scientists.Which other branch of Earth science would these scientists most likely represent?

A
geology
B
astronomy
C
meteorology
D
oceanography
19

Scientists want to eventually collect data from the surface of Venus.Which is a technology that could be used to collect samples and determine if it was habitable?

A
a rover vehicle that can withstand the harsh Venus environment
B
satellites that predict locations for water formation on Venus
C
computer simulations that model the formation of Venus
D
a telescope that records information about the weather patterns on Venus
20

Which serves as evidence for a scientific claim?

A
surveys of public opinion
B
company advertisements
C
controlled experiments
D
personal websites

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