Georgia Science Grade 8

Chapter 1: The Nature of Science

CRCT Practice

1
What is a rule describing a pattern in nature called?
A)possible explanation
B)scientific law
C)scientific theory
D)technology
2
The model of the solar system best represents which kind of scientific model?

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A)idea
B)computer
C)physical
D)realistic
3
All of the following are represented in the model EXCEPT which of the following?

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A)the sun
B)the moon
C)planets
D)stars
4
What is it called when you combine what you already know with new facts?
A)estimate
B)hypothesis
C)inference
D)critical thinking
5
What are the variables that do not change in an experiment called?
A)independent variables
B)dependent variables
C)constants
D)inferences
6
An educated guess based on what you know and what you observe is called which of the following?
A)prediction.
B)hypothesis.
C)conclusion.
D)data.
7
What type of scientist could the person in the photo be classified as?

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A)life scientist
B)physical scientist
C)Earth scientist
D)medical doctor
8
Which of the following is not an example of a model?
A)CD
B)map
C)recipe
D)drawing
9
Which of the following questions can science NOT answer?
A)Why do the leaves on trees change colors in the fall?
B)Why do bears hibernate in the winter?
C)Where do waves in the ocean form?
D)What is the most popular book?
10
Which of the following is NOT a safety precaution this student might want to take?

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A)slant test tubes away from yourself
B)wear an apron
C)avoid washing your hands
D)wear goggles
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