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