Lesson 1 Interim Assessment

A person is running a race. Which of the following will happen to their vital signs as they're running?

• Pulse will increase

• Respiratory rate will increase

• Respiratory rate will decrease

• Blood pressure will decrease

• Blood Pressure will increase

           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.

Ÿ  They had five students perform jumping jacks for two minutes and then measured their blood pressure.

Ÿ  They repeated the experiment three times.

Ÿ  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.

Ÿ 

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.

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.

Write a clear experimental procedure for Experiment 1, so that it is repeatable, and produces valid and reliable results.

          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.

Ÿ  They first measured their heart rates while resting and then again while performing yoga breaths.

Ÿ  They recorded their measurements.

Ÿ  They repeated the experiment three times.

Ÿ  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.

         1.   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.

Does the patient have strep throat? Explain your reasoning.

• Yes

• No

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)