Abstract Hypothesis Procedure Observation Analysis concusion
Abstract
An experiment was conducted to learn and demonstrate the steps involved in the scientific method. The steps of the scientific method were used to identify six substances that were labeled “unknown.” The substances were put through a series of tests an observations to determine their identities.
Hypotheses
The identities of the unknown substances are as follows:
Substance #1 – Plant Fertilizer
Substance #2 – Potting Soil
Substance #3 – Brown Sugar
Substance #4 – Baking Soda
Substance #5 – Powdered Sugar
Substance #6 – Powdered Milk
Procedure
Each substance was observed inside their containers and the hypotheses were based on these observations. The volumes of each substance was then measured inside their containers. Each substance was then weighed and density calculated. After, each substance was observed under magnifying glass, smelled and touched to determine texture. Lastly, each substance was tested for solubility. …show more content…
ObservationS | #1 | #2 | #3 | #4 | #5 | #6 | Hypothesis | Plant Fertilizer | Potting Soil | Brown Sugar | Baking Soda | Powdered Sugar | Powdered Milk | Color | Brown | Brown | Gold | White | White | White | Texture | Hard | Gritty | Gritty | Smooth | Dry | Smooth | Shape | Irregular | Irregular | Crystalline | Too Small | Too Small | Too Small | Smell | Somewhat Sweet | Earthy | Sweet | Sweet | No Smell | No Smell | Soluble | Soluble | Insoluble | Insoluble | Insoluble | Soluble | Insoluble | Density | .5 | .47 | 1.0 | .95 | .67 | .87 | Conclusion | Coffee | Potting Soil (Correct) | Brown Sugar (Correct) | Baby Powder | Baking Soda | Flour |
Sample | Mass of full vial & bag (g) | Mass of empty vial & bag (g) | Mass of unknown sample (g) | Volume (cm3) | Density (g/cm3) | #1 | 2.0 | 1.5 | .5 | 1.0 | .5 | #2 | 2.2 | 1.5 | .7 | 1.5 | .47 | #3 | 3.0 | 1.5 | 1.5 | 1.5 | 1.0