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WorksheetsPLTW Medical Detectives Lesson 1 Interim Assessment
Total questions: 8
Worksheet time: 17mins
A person is running a race. Which of the following will happen to their vital signs as they’re running?
Blood pressure will decrease; Pulse will increase; Respiratory rate will increase
Blood pressure will increase; Pulse will increase; Respiratory rate will increase
Blood pressure will increase; Pulse will decrease; Respiratory rate will increase
Blood pressure will decrease; Pulse will decrease; Respiratory rate will decrease
A researcher is interested in performing an experiment to determine whether listening to classical music while taking a quiz helps students do better. The researcher has two comparable classrooms with one classroom of students taking a quiz while listening to classical music and the other taking the same quiz without listening to classical music. What is the independent variable in this experiment?
Different classrooms
Listening to classical music
Taking a quiz
How students do on the quiz
Experiment 1: A group of students performed an experiment to see whether doing jumping jacks for two minutes would increase their blood pressure.
• They had five students perform jumping jacks for two minutes and then measured their blood pressure.
• They repeated the experiment three times.
• They analyzed their results, and since the blood pressure measurements were all above the normal values you’d expect, they concluded that doing jumping jacks does increase blood pressure.
What was wrong with Experiment 1?
They didn’t include a control group.
They didn’t include multiple trials.
They included more than one independent variable.
They should’ve only had one test subject.
Write a clear experimental procedure for Experiment 1, so that it is repeatable, and produces valid and reliable results.
Do not forget to include these elements:
- a control group
- clear and specific directions other scientists could repeat
- multiple trials
A group of students performed an experiment to test whether performing yoga breaths affects heart rate. They hypothesized that performing yoga breaths would reduce heart rate.
• They first measured their heart rates while resting and then again while performing yoga breaths.
• They recorded their measurements.
• They repeated the experiment three times.
• Their results are shown in Table 1.
Write a one-sentence conclusion for this experiment. Remember to relate your conclusion to the original hypothesis.
Describe three ways to prevent contamination of your sample when working with bacteria.
This microorganism causes the common cold. It can only multiply when inside a human host. It is so small, it can’t be seen with microscopes you will use in school, and it has the ability to mutate or change. What type of disease agent is this microorganism?
Bacteria
Virus
Fungus
This microorganism is not a disease agent.
Use the lab test results to determine if the patient has strep throat.
Does the patient have strep throat? Explain your reasoning.
Use Chart 1 to answer the question. X marks indicate which illnesses commonly show each symptom.
A patient comes to the ER complaining of the following symptoms: • Coughing (sometimes coughs up blood) • Fever • Chills • Fatigue • Weakness • Pain in the chest Based on the information you have, what illness does this patient most likely have?
Common cold
Influenza (Flu)
Pneumococcal pneumonia
Tuberculosis (TB)
