Tennessee Science Grade 7

Chapter 1: The Nature of Science

TCAP Preparation

1
What is an attempt to explain a pattern observed repeatedly in nature called?
A)opinion
B)prediction
C)scientific theory
D)scientific fact
2
Which of the following is the first step in using scienctific methods?
A)deveop a hypothesis
B)make conclusions
C)observe and question
D)test a hypothesis
3
What type of scientific model is shown in the illustration?

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A)physical
B)computer
C)idea
D)mathematical
4
What is the purpose of this solar system model?

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A)save money
B)save time
C)communicate ideas
D)test predictions
5
Which is an evaluation of new facts based on what you already know?
A)critical thinking
B)estimation
C)hypothesis
D)theory
6
Which variables are usually observed for change in an experiment?
A)constants
B)dependent variables
C)independent variables
D)inferences
7
Which of the following is an educated possible answer based on what you know and observe?
A)conclusion
B)hypothesis
C)data
D)prediction
8
If the size of the map is increased so that its length and its width double, what is the scale?

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A)1 cm = 1.05 km
B)2 cm = 1.05 km
C)1 cm = 2.10 km
D)1 cm = 4.20 km
9
Which of the following means to make an inference?
A)draw a conclusion
B)communicate findings
C)make an observation
D)make a guess
10
What should you do if your hypothesis is not supported?
A)change the hypothesis
B)repeat the experiment
C)analyze your data
D)communicate your results
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