Question

question 3 of 5
a student wants to compare the amounts of co₂ given off by yeast provided with different amounts of sugar. the student places a balloon over each container to catch the released co₂. which observation is a qualitative observation the student can make?
a. a description of the shape of each balloon
b. a measurement of the approximate size of each balloon
c. a visual count of individual co₂ molecules in each balloon
d. a measurement of the circumference of each balloon

Explanation:

Qualitative observations describe characteristics or qualities. A description of the shape of each balloon (Option A) is a qualitative observation as it focuses on a non - numerical, descriptive aspect. A measurement of size (Option B) and circumference (Option D) are quantitative (numerical). A visual count of \(CO_2\) molecules (Option C) is not feasible as \(CO_2\) molecules are too small to be visually counted.

Answer:

A. A description of the shape of each balloon