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Unit 1, Concept 1 & 2 (Biology Basics) Flashcards | StudBud
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Unit 1, Concept 1 & 2 (Biology Basics)
Unit 1, Concept 1 & 2 (Biology Basics)
48 terms
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Nature of Science & Chemistry of Life
Flashcards
48 cards
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Practice quiz
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Questions
48
Answers
1
A polar molecule has an unequal distribution of charges.
False
True
2
Science is a particular way of ______ about the world.
seeing
knowing
observing
studying
3
A principle is often accepted as fact and describes patterns in nature.
True
False
4
When making lemonade from powder, what is the lemonade powder?
solvent
mixture
solute
solution
5
What is an example of cohesion?
hair tied together
static electricity
tape
water droplets
6
What aspect of technological design involves brainstorming, research, sketching, and finding best designs?
evaluation
solution design
implementation
problem identification
7
The 6 elements necessary for life are C, H, O, N, B, S.
True
False
8
Cohesion means "together"
True
False
9
A theory is an explanation of an observed ______.
action
experiment
phenomenon
event
10
Qualitative observations uses numbers to measure something.
False
True
11
Matter is anything that has mass.
False
True
12
What is water made of?
1 oxygen, 3 hydrogen
1 oxygen, 2 hydrogen
2 oxygens, 1 hydrogen
3 oxygen, 2 hydrogen
13
What is considered the "normal group"?
experimental group
hypothesis
control group
constant
14
What aspect of technological design involves determining if you solved the problem?
implementation
problem identification
solution design
evaluation
15
Precision is how close your measurements are to each other.
False
True
16
Questions often arise from the ____ we make.
thoughts
actions
inferences
observations
17
The overall goal of a scientific investigation is to answer a question.
True
False
18
A uniform mixture of two or more substances is called a ____.
solute
solution
mixture
solvent
19
The dependent variable is the cause.
False
True
20
Which word means water "fearing"?
hydrophilic
aqualove
hydrophobic
marine attraction
21
Water is considered the universal solvent because it dissolves more substances than any other liquid.
False
True
22
What is the definition of a fact?
something tested several times with the same result
describes a pattern in nature
an objective, verifiable observation
a theory of life
23
The following is NOT an example of a fact:
There was no rain today.
It was 75 degrees F today.
There were cumulonimbus clouds today.
It was a beautiful day today.
24
What part of an experiment includes what you will need to conduct the experiment?
data
materials
procedures
conclusions
25
What aspect of technological design involves clearly defining the problem or need?
evaluation
solution design
implementation
problem identification
26
What is the proper format of a hypothesis?
The light turns on and then the temperature rises.
Lights are great to make a room bright and warm.
If a light is turned on, then the temperature will go up.
If you like the lights on, then the temperature will go up.
27
A theory organizes facts and research from scientists to explain why, but it never becomes a fact or a law.
True
False
28
Life cannot exist under frozen surfaces.
False
True
29
What aspect of technological design involves building, testing, and making continual improvements?
solution design
implementation
evaluation
problem identification
30
Science is based on experimentation so our understanding is always built upon new findings.
False
True
31
Matter is composed of atoms.
True
False
32
What does IV and DV stand for?
interdependent variable, defined variable
independent variable, dependent variable
independent variable, defined variable
inderdependent variable, dependent variable
33
Theory is an example of an observed phenomenon.
False
True
34
In technological design, implementation involves brainstorming, research, and narrowing down to the best design.
True
False
35
When making lemonade from powder, what is the final product?
solute
mixture
solvent
solution
36
A hypothesis is a testable prediction based on observations that describes cause/effect relationships between variables.
False
True
37
An atom is the smallest part of an element.
True
False
38
Biology is the study of living organisms and elements, and covers their physiology, anatomy, behavior, and origin.
False
True
39
When considering quantitative data, what word describes how close your measurement is to the correct/accepted value?
precision
focal value
sharpness of results
accuracy
40
When making lemonade from powder, what is water?
solvent
solute
solution
mixture
41
What is the group used for comparison with your experimental groups?
constant
dependent variable
control
independent
42
What is the type of attraction that happens between two different molecules?
magnetism
adhesion
bonds
cohesion
43
Which word means water "loving"?
marine attraction
hydrophobic
aqualove
hydrophilic
44
What is the type of attraction that happens between molecules of the same substance?
adhesion
magnetism
bonds
cohesion
45
What is the most basic unit of life?
cell
atom
matter
nucleus
46
Water is more dense as a solid.
True
False
47
What are the four components of technological design in order?
solution design, implementation, evaluation, problem identification
problem identification, solution design, implementation, evaluation
implementation, solution design, evaluation, problem identification
evaluation, problem identification, solution design, implementation
48
Technology is the advancement of knowledge.
True
False
