Unit 2 List 2 Experimental Desgin

Question 1

Claim

Answer 1

statements in science supported by data and research

Question 2

Constant

Answer 2

The factors that do not change during the experiment.

Question 3

Evidence

Answer 3

information collected via rigorous scientific methods that changes their belief in the truth of factual claims of the first to the fourth kind.

Question 4

Experimental bias

Answer 4

the unintentional influence of the experimenter’s expectations, beliefs, or preconceived notions on the outcome of a study or research experiment.

Question 5

Experimental control

Answer 5

a scientific test done under controlled conditions, meaning that just one (or a few) factors are changed at a time, while all others are kept constant.

Question 6

Experimental procedure

Answer 6

the manner in which an experiment is carried out

Question 7

Hypothesis

Answer 7

a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

Question 8

Manipulated variable

Answer 8

a factor that is purposefully and specifically changed by the experimenter

Question 9

Qualitative data

Answer 9

data representing information and concepts that are not represented by numbers.

Question 10

Quantitative data

Answer 10

data that can be counted or measured in numerical values

Question 11

Reason

Answer 11

allows us to develop new technologies, solve practical problems, and make informed decisions

Question 12

Responding variable

Answer 12

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

Question 13

Scientific method

Answer 13

the process of objectively establishing facts through testing and experimentation.

Question 14

Scientific model

Answer 14

a physical and/or mathematical and/or conceptual representation of a system of ideas, events or processes

Question 15

Scientific question

Answer 15

one where an investigation can be designed and completed to find out the answer without having to do multiple, entirely different investigations to get there

Question 16

Scientific theory

Answer 16

a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment

Question 17

Trends in data

Answer 17

the general change in a variable with time

Question 18

Valid experiment

Answer 18

how well you have controlled your experimental variables in order to maintain a fair test.