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Science Olympiad » Disease Detectives Event » State Event Exercises
Problem: Georgia Elementary Science Olympiad
May 10, 2003

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Answer Key

This event consists of 8 problems. Some involve “stations” displaying an item or activity that affects health. Stations can be set up in the classroom so students can visit them one at a time, or pictures of the station items can be accessed by the PowerPoint Presentation (PPT 1.11MB).

Students working on the web should enter answers in the boxes provided and then click “Print” on the toolbar for a copy. They can then compare their work with the answer key.
Note: Answers are not saved to a database.

Station A: Item 1 - Cigarettes

Photo of cigarettes

(4 points total)
Problem 1.
For each item, name two diseases or health problems caused by the item.

Item 1 (cigarette):

Station A: Item 2 - Smokeless Tobacco

Photo of smokeless tobacco

Item 2 (smokeless tobacco):

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Station B: Public Swimming Pool

Photo of kids in a swimming pool

(9 points total)
Problem 2.
Station B (swimming pool).
For this problem, think about different kinds of health problems and dangers that can be present at public swimming pools.

Identify three different kinds of health risks, and two ways to prevent each health risk.

Health Risk or Danger

Prevention Methods

1. 1.
2. 1.
3. 1.

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 (5 points)
Problem 3.

Health department Disease Detectives helped two high schools – Elm School and Oak School – to do surveys to identify how many students have tried smoking cigarettes. The results of the survey are given in this table:

School Total Students Students Smoking Cigarettes
Elm 100 50
Oak 400 100

As the chief health officer, if you could chose which school to visit to educate kids about the health problems related to smoking, which school would you choose and why?

(a) school:
(b) reason for choosing school:

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Station C: Hamburger Meat

Photo of packaged, raw hamburger meat

(6 points total)
Problem 4. Station C (hamburger meat).

(a) Name something (an agent, organism, or other biologic thing) that can cause sickness or disease in humans if present in this item.

(b) For this item, list one health problem (a kind of illness, disease or condition) that might result from eating this item.

(c) Give one way to prevent health problems that might result from eating this item.

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(9 points total)
Problem 5.
Match the following terms. Write the letter for the term in column B in the space for the correct term in column A. Each term in column B is used only once.

alcohol a. obesity, or being seriously overweight
surgical gloves b. risk factor for skin cancer
sunburn c. only disease ever eradicated
smoke detector d. risk factor for liver disease
cigarette smoking e. prevent hospital infections
vaccination f. prevents injuries in crashes
poor diet g. important part of a fire safety plan
seat belt h. measles prevention
smallpox i. leading cause of preventable deaths in USA

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Station D: Mosquitoes

Photo of a biting mosquito

(8 points total)
Problem 6. Station D (mosquitoes).

(a) List one human health problem or disease associated with this insect.

(b) On the following lines, briefly explain how people may get sick from contact with this insect.

(c) Give 2 ways to prevent health problems caused by this insect.

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Station E: Data for Problem 7 - Students get sick after trip to zoo.

Student Petted Lizard? Lunch? Sick?
1 Yes Zoo Yes
2 Yes Home Yes
3 Yes Home No
4 Yes Zoo Yes
5 Yes Zoo Yes
6 No Home No
7 No Home Yes
8 Yes Home Yes
9 Yes Home Yes
10 No Home No
11 No Zoo No
12 No Zoo No
13 No Home No
14 No Zoo No
15 No Home No
16 Yes Zoo Yes
17 Yes Home Yes
18 Yes Zoo No
19 Yes Home No
20 No Zoo No
21 No Home No
22 Yes Zoo Yes
23 Yes Home Yes
24 No Home No
25 No Zoo No

(9 points total)
Problem 7. Station E (table of data about students who visited the zoo).

A class from a school visited the zoo on a field trip. As part of the trip, the class had a chance to pet a large lizard in the reptile house. After visiting the reptile house, the class had lunch. Some students bought lunch at the zoo and some brought their lunch from home. After lunch, they returned to school. Later in the day, some of the students got sick. Disease Detectives were called in to investigate the outbreak. They asked each student what they did before they got sick. The students’ answers are in the table.

(a) The Disease Detectives decided that it wasn’t lunch that made some students sick. How did they use the information about lunches from the data table to make that decision?

(b) What activity probably made the students sick? Again, using information from the data table, how do you know?

(c) How could this outbreak have been prevented?

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Station F: Graphs of Tuberculosis Data

Figure 1.

Map showing TB Case Rates in the United States for the year 2001. Rate per 1000 of less than or equal to 3.5  (year 2000 target) for these states: OR, ID, MT, WY, UT, CO, NM, KS, NE, SD, ND, IA, MO, WI, MI, IN OH PA, WV, VT, NH, ME, CT.  Rates of 3.6 - 5.6 per 1000: WA, NV, AZ, OK, MN, MS, KY, TN, NC, VA, MD, MA. Rates per 1000 of greater than 5.6 (national average): CA, AK, HI, TX, LA, AR, AL, GA, FL, SC, IL, NY, NJ, DC.

Figure 2.

Chart showing reported TB Cases in the United States, 1981-2001. Number of cases in 1981 was close to 28,000. Number of cases dropped in 1985, rose in 1989 to 1993, and then dropped again in 1997 and 2001.

(10 points total)
Problem 8.
Station F (graphs of TB data).

Tuberculosis or “TB” is an infectious disease. It is caused by a bacterium that usually infects the lungs. TB is spread through the air from person to person. When someone with TB coughs, sneezes, or otherwise sprays TB germs from their lungs, someone else can breathe them in and get infected with TB. Answer the questions below by looking at the two graphs.

Using Figure 1, answer the following questions:

  1. A case rate is the number of cases of a disease divided by the size of the population being studied. What was the national average TB case rate in 2001?

    cases per 100,000


  2. How many states had TB case rates that were greater than the national case rate?



  3. Where do TB case rates tend to be higher?

    a. In the Northeast part of the country.

    b. In the Southeast part of the country.

    c. Case rates are basically the same everywhere.


Using Figure 2, answer the following questions:

  1. Which of the following statements is false?

    a. There were more TB cases in 1993 than in 1984.

    b. For the years shown in the Figure, the year with the fewest TB cases was 2001.

    c. For the years shown in the Figure, the only year when there were fewer than 20,000 TB cases was 1999.


  2. How many TB cases were there in the United States in 2001?

    a. About 10,000

    b. About 25,000

    c. About 16,000

    d. Cannot tell from the Figure

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Answer Key

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This page last reviewed April 24, 2007

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