Question

1. what are controlled variables in an experiment?

a. the factors that are changed during the experiment
b. the data collected from the experiment
c. the outcomes that are measured
d. the factors that are kept constant to ensure accuracy

1. what type of data includes measurements like length and volume?

a. qualitative data
b. quantitative data
c. inferred data
d. subjective data

1. which sensory tool is not typically used for making observations?

a. guessing
b. sight
c. hearing
d. touch

Explanation:

Question 13

• Option a: Changed factors are independent variables.
• Option b: Data collected is results, not controlled variables.
• Option c: Measured outcomes are dependent variables.
• Option d: Controlled variables are kept constant to ensure experiment accuracy.

• Option a: Qualitative data is descriptive (e.g., color, texture).
• Option b: Quantitative data involves numerical measurements (length, volume are numerical).
• Option c: Inferred data is deduced, not direct measurement.
• Option d: Subjective data is opinion - based.

• Option a: Guessing is not a sensory tool; it's a prediction without evidence.
• Option b: Sight is a sensory tool (observing with eyes).
• Option c: Hearing is a sensory tool (observing with ears).
• Option d: Touch is a sensory tool (observing with skin).

Answer:

d. The factors that are kept constant to ensure accuracy

Question 14