EVERYDAY SCIENCE

Detailed explanation-1: -Each person’s pulse was taken before the music and then after each 30-second interval of music. The pulses were taken again after the music selections were completed. Based on her experiment, Carmen concluded that a person’s pulse rate changed when the person listened to different types of music.

Detailed explanation-2: -The conclusion is the step of the scientific method that includes a summary of the results of the experiment and a statement of how the results relate to the hypothesis. The conclusion occurs at the end of the experiment, once the steps have been followed and data has been collected.

Detailed explanation-3: -An osmosis investigation was conducted using chicken eggs to represent cells with semipermeable membranes. The mass of each egg was measured to determine how much water diffused into or out of the eggs. The eggs were first soaked in vinegar to dissolve the shell.

Detailed explanation-4: -What is qualitative data? Unlike quantitative data, qualitative data is descriptive, expressed in terms of language rather than numerical values. Qualitative data analysis describes information and cannot be measured or counted. It refers to the words or labels used to describe certain characteristics or traits.