Chapter 1, Problem 12STP

Interpretation Introduction

Interpretation:

In the given experiment, the independent and dependent variables needs to be identified. Also, the difference between the two needs to be explained.

Concept introduction:

The action of measuring the size or quantity of anything is defined as a measurement. A measure of hotness plus coldness of something is described as temperature.

A quest to discover the solution to a question by practicing the scientific method (or process) is described as Scientific investigation or experiment.

Answer to Problem 12STP

An independent variable = Sugar cubes, Sugar crystals, or crushed sugar (particle size)

A dependent variable = Time taken (in experiment)for sugarto mix/dissolve.

Explanation of Solution

A variable being measured (or tested) in a scientific investigation\experiment called dependent variable. A variable that is controlled in a scientific experiment/investigation to examine the effects on the dependent variable called an independent variable.

In the given experiment, an amount of time needed for dissolving is defined as a dependent variable. In short, it is the amount of period needed for dissolving.

The quantity of sugar (crushed) before it is added, defined as an independent variable.

Sugar cubes, Sugar crystals, or crushed sugar (particle size) are an independent variable whereas, rate of dissolving sugar is dependent variable.

Conclusion

Sugar cubes, Sugar crystals, or crushed sugar (particle size) = An independent variable

Time taken (in experiment) for sugar to mix/dissolve = A dependent variable