Purpose: Explore the spread of a communicable disease using a simulation.
Question:What is the effect of immunity on the rate at which a disease spreads?
Hypothesis: If a higher percentage of people are immune to a disease, then the disease will spread more slowly, because fewer people will be able to contract it or pass it on.
Variables Independent variable: immunity rate
Dependent variable: number of people with the disease
Materials: White paper cups water 1 cup of NaOH food coloring phenolphthalein indicator
Procedure:
Step 1: Obtain a cup. One person, unknown to everyone except the teacher, will have a cup of NaOH, the “disease.” All others will have water in their cups.
Step 2: Make a point of contact with someone at random. One …show more content…
In the space below, write down the name of the person with whom you exchanged liquids.
Name:__________________________________
Step 3: Repeat Step 2.
Step 4: Repeat Step 2.
Step 5: Repeat Step 2.
Step 6: Repeat Step 2.
Step 7: Repeat Step 2.
Step 8: Place one drop of phenolphthalein into your mixture. If the solution changes from clear to pink, then you have the disease. Count the total number of infected people and record that number in the data table. Compute and record the final percentage.
Step 9: Dispose of all liquids according to your teacher’s directions.
Step 10: As a class, work together to answer the following question: Who was the first person to have the disease? If you do not have enough data to identify the person, narrow down the field as much as possible and explain why you do not have enough data.
Analysis: In this experiment i used different viruses and exchanged them with individuals they then infected others and proved that as 1 infects then it multiples until the bacteria can not feed on a host anymore.
Summary: In this experiment, I simulated the contraction of a communicable disease using cups of liquids. This is a simulation of what happens when bodily fluids such as saliva,
Question:What is the effect of immunity on the rate at which a disease spreads?
Hypothesis: If a higher percentage of people are immune to a disease, then the disease will spread more slowly, because fewer people will be able to contract it or pass it on.
Variables Independent variable: immunity rate
Dependent variable: number of people with the disease
Materials: White paper cups water 1 cup of NaOH food coloring phenolphthalein indicator
Procedure:
Step 1: Obtain a cup. One person, unknown to everyone except the teacher, will have a cup of NaOH, the “disease.” All others will have water in their cups.
Step 2: Make a point of contact with someone at random. One …show more content…
In the space below, write down the name of the person with whom you exchanged liquids.
Name:__________________________________
Step 3: Repeat Step 2.
Step 4: Repeat Step 2.
Step 5: Repeat Step 2.
Step 6: Repeat Step 2.
Step 7: Repeat Step 2.
Step 8: Place one drop of phenolphthalein into your mixture. If the solution changes from clear to pink, then you have the disease. Count the total number of infected people and record that number in the data table. Compute and record the final percentage.
Step 9: Dispose of all liquids according to your teacher’s directions.
Step 10: As a class, work together to answer the following question: Who was the first person to have the disease? If you do not have enough data to identify the person, narrow down the field as much as possible and explain why you do not have enough data.
Analysis: In this experiment i used different viruses and exchanged them with individuals they then infected others and proved that as 1 infects then it multiples until the bacteria can not feed on a host anymore.
Summary: In this experiment, I simulated the contraction of a communicable disease using cups of liquids. This is a simulation of what happens when bodily fluids such as saliva,