Unit 1 Experimental Design LC

Question 1

Testable question

Answer 1

ones which can be answered through experimental inquiry and observation of the natural world.

Question 2

Non-testable question

Answer 2

Questions that cannot be answered by direct observation or by evidence gathered through experimental inquiries

Question 3

Quantitative

Answer 3

Measuring something by using numbers

Question 4

Qualitative

Answer 4

Measuring something by description

Question 5

Trials

Answer 5

a tryout or experiment to test quality, value, or usefulness

Question 6

Observation

Answer 6

noticing or perceiving information from a primary source.

Question 7

Empirical evidence

Answer 7

information gathered directly or indirectly through observation or experimentation

Question 8

Data

Answer 8

facts and statistics collected together for reference or analysis.

Question 9

Model is science

Answer 9

a representation of a phenomenon, object, structure, or system

Question 10

Analogy

Answer 10

A comparrision to find similarities between two things

Question 11

Prototype

Answer 11

a physical model that can be shown to others

Question 12

Hypothesis

Answer 12

an educated guess

Question 13

Variable

Answer 13

anything that can change or be changed in an experiment

Question 14

Procedure

Answer 14

steps taken in an experiment

Question 15

Accuracy

Answer 15

how close your measurement is to the “true” value

Question 16

Precision

Answer 16

how close 2 or more measurements are to each other

Question 17

Scientific Method

Answer 17

the process of observing, asking questions and finding answers through tests

Question 18

Control

Answer 18

the part that stays the same and is used to tell if the experiment is working

Question 19

Constant

Answer 19

factors that do not change in an experiment

Question 20

Predict

Answer 20

to say what will happen before the experiment begins

Question 21

Infer

Answer 21

to make a well informed guess

Question 22

Independent Variable

Answer 22

variable that is manipulated in the experiment

Question 23

Dependent Variable

Answer 23

variable that changes depending on the independent variable’s outcome

Question 24

Manipulated Variable

Answer 24

something changed on purpose during an experiment

Question 25

Responding Variable

Answer 25

the part of an experiment that a scientists measures and observes closely for a change or a response.

Question 26

Sample Size

Answer 26

the number of observations included in the study

Question 27

Validity

Answer 27

how accurately a method measures what it intends to measure

Question 28

Trends in Data

Answer 28

data is showing an upward or downward movement for part or all of the time series

Question 29

Correlation

Answer 29

describes the relationshiop between variables

Question 30

Variability

Answer 30

describes how far apart data points lie from each other and from the center of a distribution

Question 31

Mass

Answer 31

the amount of matter that makes up an object

Question 32

Volume

Answer 32

the amount of space an object takes up

Question 33

Weight

Answer 33

force exerted on a body by gravity

Question 34

Percent

Answer 34

a number that is a fraction of 100

Question 35

Rate

Answer 35

change in quantity with respect to change in another quantity

Question 36

Ratio

Answer 36

a comparison of two or more numbers and it indicates the numbers' sizes in relation to each other

Question 37

Line Graph

Answer 37

a display of information that changes continuously over time

Question 38

Bar Graph

Answer 38

a graphical representation of data, quantities, or numbers using bars or strips.

Question 39

Pie Graph

Answer 39

a circular graphic, divided into slices to show numerical proportion

Question 40

Scatterplot

Answer 40

uses dots to represent values for two different numeric variables

Question 41

Claim

Answer 41

a generalization based on a reported statistically significant effect.

Question 42

Evidence

Answer 42

information collected that shows the truth

Question 43

Reason

Answer 43

the ability to recognize and understand the scientific method, concepts, processes, and applications used in the pursuit of knowledge

Question 44

Theory

Answer 44

an idea or set of ideas that is intended to explain facts or events

Question 45

Bias

Answer 45

a flaw in the study when collecting or interpreting the data