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Interactive Science 7th Grade Florida > Chapter 1 - What Is Science? > Flashcards

Chapter 1 - What Is Science? Flashcards

1
Q

Pose

A

To pose is to put forward a question or problem

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2
Q

Evidence

A

Facts, figures, or signs that help prove a statement are all pieces of evidence

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3
Q

Science

A

Science as a way of learning about the natural world.

Scientists use skills such as observing, inferring, predicting, classifying, evaluating and making models to study the world.

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4
Q

Inferring

A

When you explain or interpret the things you observe. Inferring is not guessing. Inferences on based on reasoning from what you already know.

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5
Q

Predicting

A

Making a statement or claim about what will happen in the future based on past experience or evidence

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6
Q

Classifying

A

Grouping together items that are alike in someway

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7
Q

Evaluating

A

Comparing observations and data to reach a conclusion about them

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8
Q

Making models

A

Creating representations of complex objects or processes. Some models can be touched such as a map. Others are in the form of mathematical equations or computer programs.

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9
Q

Variables

A

Factors that can change in an experiment

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10
Q

Independent variable

A

A factor that is changed to test a hypothesis

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11
Q

Dependent veritable

A

Changes in response to the Independent variable

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12
Q

What attitudes help you think scientifically?

A

Curiosity, honesty, creativity, open-mindedness, skepticism, good ethics, and awareness of bias.

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13
Q

Skepticism

A

Having an attitude of doubt

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14
Q

Ethics

A

The rules that enable people to know right from wrong

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15
Q

Personal bias

A

Persons likes or dislikes

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16
Q

Cultural bias

A

Stems from a culture in which a person grows up

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17
Q

Experimental bias

A

Mistake in the design of an experiment that makes a particular result more likely

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18
Q

Objective

A

Means that you make decisions and draw conclusions based on available evidence

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19
Q

Subjective

A

Means that personal feelings have entered into a decision or conclusion

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20
Q

Deductive reasoning

A

Explaining things by stating with a general idea and then applying the idea to a specific observation

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21
Q

Inductive reasoning

A

Specific observations to make generalizations

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22
Q

Metric system

A

Measurement system based on the number 10

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23
Q

International system of units

A

SI. Modern scientist use a version of the metric system called SI aka International system of units

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24
Q

Mass

A

Measure of the amount of matter in an object.

Basic unit for measuring mass is the kilogram

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25
Weight
Measure of the force of gravity acting on an object
26
Volume
Amount of space and object or substance takes up. Basic unit of measurement volume is (cm3) cubic centimeters.
27
Meniscus
To measure the volume of a liquid read the level at the bottom of the meniscus, or the curve.
28
Density
Measure of how much mass is contained in a given volume. Basic unit is kilograms per cubic meter
29
Length
Distance from one point to another. Basic unit of measuring length is the meter
30
Temperature
The basic unit of measurement for temperature is Kalvin. Celsius is also used, but not the official one.
31
Time
Basic unit to measure time is seconds
32
What math skills do scientist use?
Estimation, accuracy and precision, and significant figures
33
Estimate
Approximation of a number based on reasonable assumptions
34
Accuracy
How close a measurement is to the true or excepted value
35
Precision
How close a group of measurements are to each other
36
Significant figures
Measurement include all digits measured exactly, plus one estimated digit
37
What math tools do scientist use?
Calculating percent error's, finding the mean, median, mode, and range, and checking the reasonableness of data
38
Mean
The numerical average of a set of data
39
Median
The middle number of a set of data
40
Mode
Number that appears most often in a list of numbers
41
Range
the difference between the greatest value in the least value in a data set
42
Percent error
Calculations are a way to determine how accurate and experimental value is
43
Anomalous data
Data that do not fit with the rest of the data set
44
Graph
A picture of your data
45
Process
A process is a series of actions or events
46
Line graph
Display data that shows how one variable changes in response to another variable. Powerful tools in science because they allow you to identify trends, make predictions, and recognize anomalous data
47
Linear graph
Line graph in which data points yield straight line
48
Nonlinear graph
A line graph in which the data points do not fall along a straight line
49
What is scientific inquiry?
Refers to the diverse ways in which scientists study the natural world and propose explanations based on evidence they gather
50
Hypothesis
A possible answer to a scientific question
51
Experiment
Must follow sound scientific principles for its results to be valid
52
Controlled experiment
Experiment in which only one variable is manipulated at a time
53
Data
Facts, figures, and other evidence gathered through qualitative and quantitative observations
54
Repeated trials
Repetition of an experiment
55
Replication
Another scientist repeats your experiment
56
How do we gain scientific knowledge?
Observations in modeling are two other ways of gaining scientific knowledge
57
Observing
Using your senses together information
58
How do you measure volume of liquids?
With a graduated cylinder
59
How do you measure volume of a rectangle solid?
Length x width x height
60
How do you measure the volume of an regular solid?
With the graduated cylinder. You see what the difference is when you drop the rock in the water.
61
How do you measure density?
Density equals mass over volume D=m/v
62
Scientific theory
Well tested explanation for a wide range of observations or experimental results
63
Scientific law
A statement that describes what scientists expect to happen every time under a particular set of conditions. Unlike theory a scientific law describes an observed patterns in nature without attempting to explain it.
64
Scientific explanation
Describe how something works or why something happens
65
Empirical evidence
Data and observations that have been collected through scientific process
66
Opinion
An idea that may be formed from evidence but has not been confirmed by evidence
67
Controversy
Scientist can change society by defending their work in the face of controversy. Discovery which conflicts with the beliefs of society or its leaders.
68
Scientific knowledge
Results of new evidence or near interpretation of existing evidence can change scientific knowledge.
69
Model
Any representation of an object or process
70
System
A group of parts that work together to perform a function or produce a result
71
Input
The material or energy that goes into a system
72
Process
What happens in the system
73
Output
Material or energy that comes out of the system
74
Feedback
Output that changes the system in someway

Interactive Science 7th Grade Florida (4 decks)

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