Skills Lesson: Modeling Systems and Cycles Answers

A scientific model is easier to interpret and understand when it includes the main parts or processes, rather than every detail of every part or process.

Amanda is doing a report for her Earth Science class about the four seasons. Which of the following would be an effective scientific model to incorporate in her project? a. A calendar indicating the first days of autumn, winter, spring, and summer b. Four earth models, each with a different tilt to represent the earth’s position relative to the sun, lined up in order of season c. A poster board with pictures of weather characteristic of the four seasons d. A bar graph indicating average high and low temperatures for Amanda’s area in the autumn, winter, spring, and summer Please select the best answer from the choices provided

Connie needs to choose a current event to write about for the school newspaper. Her teacher would also like the article to include a visual aid, modeling a system or cycle. Of these options, which would best satisfy the assignment requirements? a. Connie chooses influenza as her current event, since the article is being written during flu season. For her visual aid, she models the life cycle of the flu virus. b. Connie chooses college application requirements, since the article is being written close to the application deadline. For her visual aid, she includes diagrams of several in-state campuses. c. Connie chooses spring break destinations as her current event, since the article is being written a few months before spring break. For her visual aid, she includes a price comparison chart of several destinations. d. Connie chooses water quality as her current event, since the local news recently criticized water quality in their area. For her visual aid, she makes a data table of contaminants and their abundance in the local water supply. Please select the best answer from the choices provided

When modeling a scientific process, it is more important to organize the parts in a way that makes sense to you than to list them sequentially.

Coach Taylor is trying to explain the negative side effects smoking has to athletic performance. Which of these options include both a scientific model and a connection to Coach Taylor’s topic of athletic performance?a.Show pictures of the lungs of a smoker as compared to a non-smokerb.Write the chemical formulas for carbon monoxide (found in tobacco smoke) and oxygen, comparing the two substancesc.Diagram the flow of oxygen-rich blood through the body of a non-smoker. Then diagram the flow of blood with less oxygen (from airway resistance) through the body of a smokerd.List some diseases linked to smoking: cardiovascular disease, lung cancer, emphysema