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**Experiments: Identifying Variables**

Read the following and answer the questions.

Mr. Flockalot loved to watch birds every year. Bird watching season always began in the month of March and continued through September. He was such an avid bird watcher that he kept detailed records of how many birds he saw every year. After years of watching birds, Mr. Flockalot decided to conduct his own investigation into what area his favorite bird, the purple-breasted night warbler, likes to congregate in so he could build a bird sanctuary to attract more.

He went online and found out that it likes to build its nests on the ground. So, he went to three different ecosystems: wetlands, deciduous forests, and grasslands, and counted the number of purple-breasted night warblers. He visited the same time every day for 3 weeks. After collecting his data, he went home and started planning his bird sanctuary.

1. What was Mr. Flockalot's problem?
2. How did he research his problem?
3. What was his hypothesis?
4. What is the independent variable?
5. What is the dependent variable?
6. Did he have a control? If so, what was it?
7. Name 3 constants.
8. What type of sanctuary should Mr. Flockalot build?

Answer :

Final answer:

Mr. Flockalot conducted an investigation to determine the preferred habitat of purple breasted night warblers in order to build a bird sanctuary. He observed and recorded the number of birds in three different ecosystems over a 3 week period. The independent variable was the ecosystem type, the dependent variable was the number of birds, and his hypothesis was that the birds would congregate in the ecosystem that resembled their preferred habitat.

Explanation:

1. Mr. Flockalot's problem was to determine the preferred habitat of the purple breasted night warbler in order to build a bird sanctuary.

2. He researched his problem by observing the number of purple breasted night warblers in wetlands, deciduous forests, and grasslands, and recorded the data over a 3 week period.

3. His hypothesis was that the purple breasted night warbler would congregate in the ecosystem where it could build its nests on the ground.

4. The independent variable is the ecosystem or habitat type.

5. The dependent variable is the number of purple breasted night warblers.

6. Yes, he had a control. The control was the absence of any birds in the area.

7. Three constants in this experiment are the time of day Mr. Flockalot went to the different ecosystems, the duration of 3 weeks, and the bird species being observed.

8. Based on his findings, Mr. Flockalot should build a bird sanctuary in the ecosystem where he observed the highest number of purple breasted night warblers, which is likely the ecosystem that resembles their preferred habitat.

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