Biology vocab quiz (variables, data, scientific method

Experimental design

a process scientists use to carry out effective experiments

hypothesis

an educated prediction to a problem or question

altnerative hypothesis

The average hypothesis that makes an educated prediction to a question or problem

null hypothesis

A hypothesis stating that the independent variable has no effect on the dependent

independent variable

The variable that is changed with the aim of inducing an effect on the dependent variable

dependent variable

The variable that is examined for any reactions to the independent variable

constant variables

Variables that are intentionally kept the same throughout the experiement

positive control group

Experimental group that recieves the normal conditions

negative control group

The experimental group that does not recieve any of the independent variable

experimental groups

the groups that are being subject to the independent variable and changes to it

sample size

all of the elements together in a data set

qualitative data11

data that cannot be measured with numbers

quantitative data

data that can be measured by numbers

lutes

label the axis

use the right graph

title your graph

scale the axes properly

error bars

a line on a bar that tells you the margin of error