Bio Lab quiz 2

identification variables

dependent, independent, standardized

designing the procedure

selection of level of treatments, number of replicates, sample size and control treatments

a scientific useful hypothesis must be

testable and falsifiable

what do you need to satisfy the requirement that a hypothesis must be falsifiable

must be possible that the test results do not support the explanation

hypothesis

tentatively explains something observed

What is needed for a question to be perused by scientists

be well defined and testable

elements must be measurable and controllable

Even though the hypothesis can be falsified it can

never be proved true

The evidence from an investigation can only provide

support for the hypothesis

what does an experiment involve

defining variables, outlining a procedure, determining controls to be used as the experiment is performed

what can happen once the experiment is defined

the investigator predicts the outcome of the experiment based on the hypothesis

variable

anything that you can change in your experiment

What are the three types of variables in a controlled experiment

constant, dependent, independent

independent variable

what you are going to change on purpose in your experiment

dependent variable

what you expect will change as you manipulate your independent variable

constants

anything else that might effect your experiment

In a well designed experiment constants,

must be the same each time your experiment is run because is ensures your results are accurate

How many set ups will you have in a controlled experiment and what are they called

at least 2

control and experimental set up

The more data you collect

the more reliable your results will be

What are tables and figures 2 primary functions

used to help you analyze and interpret results

to enhance clarity with which you present the work to a reader of viewer