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Fundamentals of Science
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1
Question
What is a qualitative observation?
Page 1
Answer
Describes using senses (color, smell, texture)
2
Question
Give an example of a qualitative observation.
Page 1
Answer
The liquid is blue.
3
Question
What is a quantitative observation?
Page 1
Answer
Uses numbers or measurements
4
Question
Give an example of a quantitative observation.
Page 1
Answer
The liquid is 25 mL.
5
Question
How does a qualitative observation differ from a quantitative one?
Page 1
Answer
Qualitative describes using senses; quantitative uses numbers or measurements.
6
Question
What is a hypothesis?
Page 1
Answer
An educated guess that can be tested (if/then/because)
7
Question
What format does a hypothesis typically follow?
Page 1
Answer
If/then/because
8
Question
What is a variable in an experiment?
Page 1
Answer
Something that changes in an experiment
9
Question
What is a control in an experiment?
Page 1
Answer
The part of the experiment that stays the same
10
Question
How does a variable differ from a control?
Page 1
Answer
Variable changes; control stays the same.
11
Question
What is the scientific method?
Page 1
Answer
Steps to solve problems using evidence
12
Question
What is an element?
Page 2
Answer
Pure substance
13
Question
What is an atom?
Page 2
Answer
Smallest piece of matter
14
Question
What is a compound?
Page 2
Answer
Chemically combined elements
15
Question
How does a compound differ from a mixture?
Page 2
Answer
Compound: chemically combined elements; Mixture: physically combined only
16
Question
What is a mixture?
Page 2
Answer
Physically combined only
17
Question
What is a homogeneous mixture?
Page 2
Answer
Same throughout
18
Question
What is a heterogeneous mixture?
Page 2
Answer
Can see parts
19
Question
How does a homogeneous mixture differ from a heterogeneous one?
Page 2
Answer
Homogeneous: same throughout; Heterogeneous: can see parts
20
Question
What is a solution?
Page 2
Answer
Dissolves in another substance
21
Question
What is diffusion?
Page 2
Answer
Particles spread out
22
Question
What property do solids have?
Page 2
Answer
Have shape
23
Question
What property do liquids have?
Page 2
Answer
Flow
24
Question
What property do gases have?
Page 2
Answer
Fill space
25
Question
What is a physical change?
Page 2
Answer
No new substance
26
Question
What is a chemical change?
Page 2
Answer
New substance forms
27
Question
How does a physical change differ from a chemical change?
Page 2
Answer
Physical: no new substance; Chemical: new substance forms
28
Question
Is color change a sign of chemical change?
Page 2
Answer
Yes
29
Question
Is bubbles a sign of chemical change?
Page 2
Answer
Yes
30
Question
Is new smell a sign of chemical change?
Page 2
Answer
Yes