Scientific Method:Data Collection

Data

Data – the results of the experiment Should:

• be written on a chart or graph

• clearly show how they were measured

Review: Types of Data

2 types of data collected:• Qualitative data includes descriptions or

sights, sounds, smells, and textures• Her shirt is green, The room is cold, The class is

loud

• Quantitative data are expressed in numbers and include records of time, temperature, mass, distance, and volume• It is 75 degrees F, He is 6 feet tall, There are 32

chairs in the classroom

Recording Data

During the experiment, record data in a data table• Should include

• Title

• Heading for each column and row

• Units that were used

Graphing Data

Title Label for each axis including units of

measurement Choose an appropriate scale Include a key

Types of Graphs

Bar Graph

0

5

10

15

20

25

6 7 8

Boys

Girls

Music Lesson Participation

Grade

Number of Students

Types of Graphs

Line Graph

0

50

100

150

200

250

300

350

400

40 80 120 160 200

Predator

Prey

Population Model

Time (years)

Population

Types of Graphs

Circle Graph

6

7

8

Music Lesson Participation - Boys

Grade