Florida Science Grade 7

Chapter 1: The Nature of Science and Technology

The Nature of Science

1
What is the first step to take when solving a problem with scientific methods?
A)draw conclusions
B)analyze data
C)recognize the problem
D)identify the dependent variable
2
Which of these are the variables that stay the same throughout the experiment?
A)the constant
B)the trials
C)the data
D)the independent variable
3
Which SI measurement unit would you use to weigh a large dog?
A)a centimeter
B)a liter
C)a kilogram
D)a millimeter
4
Which of these is true?
A)Unusual outcomes never occur in an experiment.
B)Only one trial of an experiment is ever necessary.
C)Conducting more trials of an experiment provides more reliable results.
D)It is best to change methods between trials in an experiment.
5
__________ is a statement that can be tested.
A)A bias
B)A model
C)A hypothesis
D)A control
6
Improvements in communication technology have led to __________ of scientific information.
A)localization
B)globalization
C)internalization
D)rationalization
7
Which of these is true?
A)Data tables can be completed any time after an experiment is finished.
B)Take as much time as you would like to complete any experiment.
C)Safety issues do not need to be considered until you begin an experiment.
D)Do not skip steps during the experiment process.
8
Which of these is a concern for scientists using the Internet?
A)availability
B)speed
C)language
D)accuracy
9
__________ is a sample from an experiment that does not have the independent variable applied to it.
A)A trial
B)A hypothesis
C)A control
D)A bias
10
__________ help organize the observations and results of your experiment.
A)Goggles
B)Beakers
C)Independent variables
D)Data tables
11
Which SI measurement unit would you use to measure the height of a small plant's stem?
A)a centimeter
B)a tonne
C)a liter
D)a kilometer
12
Before you begin an experiment, you have an expectation of the results. Which of these is true?
A)You have a bias about the experiment's outcome.
B)Any results that are different from your expectation are wrong.
C)You don't need to take measurement during the experiment.
D)You don't need to run the experiment, because you already know the results.
13
Numbers can be used to __________.
A)reduce bias in experiments
B)make an experiment safer
C)describe observations
D)list materials
14
Which SI measurement unit would you use to measure the amount of water in an aquarium tank?
A)a kilogram
B)a kilometer
C)a millimeter
D)a liter
15
Which one of these is a disease that happens when a person eats contaminated food?
A)E. coli
B)leukemia
C)chicken pox
D)polio
16
Which of these is true?
A)Only women make scientific discoveries.
B)Advances in scientific knowledge have been made by people pursuing hobbies.
C)Europeans have not contributed to scientific discoveries.
D)Advances in medicine haven't happened since the 1700s.
17
__________ is the application of science to make tools that people can use.
A)Safety
B)Technology
C)Control
D)A trial
18
__________ uses your previous experiences to help you predict what will happen in experiments.
A)A data table
B)Prior knowledge
C)Accuracy
D)An independent variable
19
Which of these people was responsible for creating a plant and animal classification system?
A)Darwin
B)Aristotle
C)Einstein
D)Galileo
20
Which one of these is a symptom of cholera?
A)runny nose
B)blurred vision
C)dehydration
D)below-normal body temperature
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Policy before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.