The Scientific Method

Hands-On Labs, Inc. Version 42-0130-00-01

Lab Report Assistant

Name: Akil Kelly

Observations

Data Table 1: Scientific Method Data
Unknown
Sample
Number

#1

#2

#3

#4

#5

#6

Hypothesis:
Coffee
Potting soil Brown Sugar Baby powder Flour Powdered Milk

Color: Dark brown
Greenish Black
Light brown
White
White
White

Texture: Coarse
Soft and grainy
Gritty
Smooth Smooth Smooth

Shape:
Granular with flexible shape
Granular with debris
Granular
Angular Angular with small particles Angular with small particles

Smell:
Strong odor
Earthy smell
Sweet odor Floral scent Odorless Odorless

Soluble: Soluble, water changes color Not soluble Soluble Soluble, some particles remain Soluble Soluble

Density: 0.3 0.5 0.7 0.9 0.5 0. 7

Conclusion:
Coffee
Potting soil Brown Sugar Baby powder Flour Powdered Milk

Data Table 2: Calculating Density of Unknown Samples

U nk no wn
S a m p l e Number

Mass of full vial & bag
(g)

Mass of empty vial & bag (g)

Mass of unknown sample (g)

Volume
(cm3)

Density
(g/cm3)
#1

.4 1.5 0.3
#2

.6 1.2 0.5
#3

1.1 1.5 0.7
#4

1.3 1.5 0.9
#5

.7 1.5 0.5
#6

1 1.5 0. 7

Attach 3-5 photos of the experimental set-up(s) for each data set.

Questions

A. Which of the six measures in the experiment yielded quantitative data? What specifically about the measure was quantitative?

Density, as the information in the Density column can be measured and counted whereas the other data in the columns are qualitative, that is the data is opinion based.

B. Which unknowns are you confident that you correctly identified? What specific test was crucial in this confidence?

I think I