Chapter 1, Problem 3STP

Interpretation Introduction

Interpretation: The item/s from the passage which is an observation needs to be identified.

Concept Introduction: Observation is defined as an information obtained from a primary source. It involves perception and recording of the data with the help of the scientific instruments. This is referred to any data which is collected during the scientific activity which is taking place.

Answer to Problem 3STP

The item D in the passage is an observation.

Explanation of Solution

The item A from the passage says raisin is dropped accidentally into the ginger ale. This is not an observation, but this is an incident that takes place or in other words procedure of an experiment. The item B in the passage says it is claimed that bubbles make the raisin to rise. This is a theory which is made to explain the reason for rise in the raisin in ginger ale.

The item C in the passage says, “why did that happen?”. This is a question related to the observation and by this question, another experiment is done in which raisin is dropped into the water thus, this is also not an observation. The time D in the passage says raisin sinks in the ginger ale which is an observation because it is observed that the ginger ale makes raisin to sink into it.

Thus, D is correct option.