Which of the following describes a pattern or event in nature that is always true?
A. theory
B. law
C. truth
D. experiment
B. law
100
True or False? Only some non-zero numbers are considered to be significant?
False, all non-zero numbers are significant
100
If a person is part of a scientific study, but they don't know what they are testing, this is called what kind of study?
Blind
200
True or False? A Computer is a tool used by scientists?
True
200
Which of the Following are not results of the scientific method?
A. Answers to Questions
B. Technology
C. More Branches of Science
D. New Materials
C. More Branches of Science
200
The act of watching and recording what occurs is the definition of ___________________?
an observation
200
What is a known digit?
It is a digit that we are positive of the value.
200
Technology is the result of what?
The scientific Method
300
Which of the following is not a way that scientists communicate results to others?
A. Talking about it to the science community
B. Putting it in the tabloids
C. Writing articles about it in science journals
D. Blogging about it on the Internet
B. Putting it in the tabloids
300
A prediction or statement that can be tested is a ________
hypothesis
300
What are 3 differences between a law and a theory?
Law: Hard to disprove, based on 1 hypothesis, states something will happen, "always true"
Theory: Easier to disprove, based on multiple hypotheses, states why something happens, "just a guess"
300
I have the following set of data:
1.2 cm, 3.4 cm, 2.9 cm, 1.8 cm. My target value was 3.4 cm. Is my set of data accurate, precise, both neither?
Accurate but not precise
300
True or False? A conclusion can only SUPPORT a hypothesis
False, it can or can't support it
400
When a scientist studies a small group to learn about a larger group, this is called what?
sampling
400
True or False? A logical conclusion based on available information or evidence is the definition of prediction?
False, it is the definition of an inference.
400
An explanation of observations of events based on knowledge gained from many observations and investigations is which of the following?
A. theory
B. law
C. truth
D. experiment
A. theory
400
The number 0.9090 has how many sig figs?
4 sig figs
400
Give an example of a description and an example of an explanation.
Ex: description - the chair has green spots
explanation - the chair has green spots because it had paint spilled on it