How are quantitative and qualitative observations different?

Mar 25, 2018

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Explanation:

QUALITATIVE OBSERVATIONS:

• They are variable.
• They are not accurate.
• They are not measurable.
• They cannot be recorded in terms of numbers.

Examples

• The freezing point of water is colder than its boiling point.
• A liter of ethanol is lighter than a liter of water.

QUANTITATIVE OBSERVATIONS:

• They are invariable.
• They are accurate.
• They are measurable.
• They can be recorded in terms of numbers.

Examples:

• The freezing point of water is ${0}^{\circ} \text{C}$ and its boiling point is ${100}^{\circ} \text{C}$
• A liter of ethanol weighs approx. $\text{789 g}$ and a liter of water weighs approx. $\text{1000 g}$