Chapter 1: Practicing Science Flashcards Preview

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Flashcards in Chapter 1: Practicing Science Deck (10):
1

investigative approach to acquiring knowledge

scientific method

2

-basic info on biological structures or details or biological processes
-provides info about systems that have no yet been well studied
-descriptive science

observational data

3

-result of careful manipulation of the system under study
-answers questions about why or how systems work
-experimental science

experimental data

4

scientists develop a tentative explanation to explain observed facts

hypothesis

5

statement of what they would see if the hypothesis being tested is NOT correct

null hypothesis

6

factors that differ among places or individuals

variables

7

statements about what the researcher expects to happen to one variable if another variable changes

predictions

8

-must always consider this when designing experiments

alternative hypotheses

9

-represents a null hypothesis
-tells us what we would see in the absence of the experimental manipulation

control

10

everything is exactly the same, or as close as possible except for the experimental variable

controlled experiments