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CMC Intro to Chemistry (Ch. 1)
CMC Intro to Chemistry (Ch. 1)
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Intro to Chemistry, Scientific Method, Observations, Matter, Mass and Weight Quiz.
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1
The variable that is being manipulated or changed in an experiment?
Independent
Control
Constant
Dependent
2
What protects living organisms from harmful UV radiation?
Ozone Layer
Oxygen gas
Exosphere
CFCs
3
This is an example of quantitative data.
many pieces
1.35 kilograms
several kilometers
red flower
4
Accidental discoveries, like penicillin
chance discoveries
pure discoveries
Purposeful discoveriesNe
applied discoveries
5
A set of controlled observations that test a hypothesis.
Analysis
Question
Experiment
Conclusion
6
The variable that is remaining the same throughout the experiment?
Control
Independent
Constant
Dependent
7
The variable that is remaining the same throughout the experiment?
Constant
Control
Independent
Dependent
8
A relationship in nature supported by many experiments; no exceptions can be found.
Law
Experiment
Conclusion
Theory
9
This kind of research thst solves specific problems.
Exploratory Research
Applied Research
Pure Research
Modeled Research
10
This varies with changes in gravitational force.
Matter
Weight
Mass
Composition
11
A judgement based on the information obtained from the experiment
Theory
Observation
Hypothesis
Conclusion
12
An explanation that has been repeatedly supported by many experiments.
Theory
Conclusion
Hypothesis
Law
13
The first step in the scientific method...
create a hypothesis
gather evidence
create a conclusion
ask a question
14
Gathering information with our senses is called
making observations
forming conclusions
performing experiments
forming a hypothesis
15
Matter is anything that has _________ and ___________
mass; volume
weight; mass
shape; weight
weight; volume
16
This is an example of qualitative data.
One hundred rocks
The boy was nice
Six pegs
Blue socks
17
'There are 20 desks in this room' is a ________________ observation.
Descriptive
Numerical
Qualitative
Quantitative
18
A standard for comparison in the experiment.
Control
Constant
Independent Variable
Dependent Variable
19
'The textbook is red' is a _______________ observation.
Descriptive
Qualitative
Quantitative
Numerical
20
Research to gain knowledge for the sake of knowledge itself.
Pure Research
Accidental Research
Applied Research
Coincidental Research
21
This has a definite composition.
Variable
Matter
Substance
Mixture
22
Chemistry deals with ___________ observations
Macroscopic
Submacroscopic
Microscopic
Submicroscopic
23
_______is/are anything that has mass and takes up space.
Matter
Building Blocks
Forces
Solids
24
A quantitative observation about the picture:
red books
textbooks
five books
heavy books
