Concept 1 Flashcards

(49 cards)

1
Q

Define science

A

A particular wya of knowing about the world (the way we explain everything we see)

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2
Q

How do we get information fr science?

A

definitions, and experiments

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3
Q

Define fact

A

An objective, verifiable, observation

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4
Q

Define law

A

Broad concept or principle (How something is done or takes place)

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5
Q

What do laws describe?

A

patterns in nature

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6
Q

What is a law excepted as?

A

facts (ex: newtons law of motion)

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7
Q

Define theory

A

An explanation of an observed phenomenon

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8
Q

What does a theory organize?

A

facts and research from scientists to explain why

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9
Q

What is a theory accepted as?

A

A fact

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10
Q

Does a theory ever become a law?

A

No

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11
Q

What is science based on?

A

Experimentation (natural involves observations)

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12
Q

What is a observation?

A

A description of what you can use all 5 senses for.

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13
Q

Is a observation a opinion?

A

No

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14
Q

What is an inference?

A

A guess about an object or outcome based on your observations

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15
Q

How many inferences can you make from one observation?

A

Many

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16
Q

Define qualitative

A

Describes qualities (no numbers)

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17
Q

Define quantitative

A

Uses numbers to measure something (ex: 4 ft long)

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18
Q

Define precision

A

How close your measurements are to each other

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19
Q

Define accuracy

A

How close your measurement is to the accepted value

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20
Q

What is the overall goal of a scientific investigation?

A

Answer a question

21
Q

Observations lead to questions and the too…

A

research to define a purpose

22
Q

Define purpose/objective

A

A statement that clearly shows what question you’re trying to answer.

23
Q

Define hypothesis

A

A testable prediction based on observations that describes cause and effect between variables

24
Q

What’s the format for a hypothesis?

A

“If IV then DV”

25
Define independent variable
what the experimenter will deliberately change or manipulate in the investigation
26
Define dependent variable
What changes in response to the independent variable (what's measured)
27
Where is the IV on a graph?
the x-axis
28
Where is the DV on a graph?
the y-axis
29
What will you need to conduct a experiment?
Include amounts, brands (if important) and be as specific as possible
30
What procedures will you need to do?
Write out every step that was taken, start with an action word, include every step so that someone could replicate the experiment, and lastly make a numbered list.
31
When designing experimental procedures what must you always consider?
Experimental and control groups
32
What is an experimental group?
groups that are being tested
33
What is an control group?
The group used for comparison "the normal group"
34
What are constants?
The aspects of an experiment that are held constant/consistent. It ensures that all aspects of the trial are identical except for the IV
35
How many trials should you have and why?
As many as possible to ensure the results aren't by chance, to eliminate any potential errors and ensure the data is precise.
36
What is data?
Collected data that is in an organized form during the investigation and easy to read (such as a graph)
37
What is a analysis?
Only makes stamens about what the data shows, highlights any trends or patterns seen in the data, discusses any potential errors in the data.
38
How do you draw conclusions and communicate them?
You make an explicit statement about wether your hypothesis was supported or rejected by your experimental data.
39
What will data do when drawing a conclusion?
It may support or reject your prediction based on your data.
40
What did science lead to?
The advancement of knowledge
41
What did technology lead to?
The advancement of society
42
Define technology
The application of scientific discoveries to meet human needs and goals through the development of products and processes
43
Define engineering
Applies scientific and mathematical principles to solve problems
44
What is problem identification?
Clearly define the problem or need
45
What is solution design?
Brainstorming, researching, sketching and narrowing doen to the best desging for a product or process, all within constraints.
46
What are the constraints in solution design?
Cost, time and materials
47
Is the perfect design ever possible?
No
48
What is implementation?
Building, testing and continuously making improvements
49
What is evaluation?
Determining if you have solved the problem and met all the constrains of the project.