Bio Report

1.   What do you want to find out? (Aim/Purpose/Research question)

The aim of the experiment

To find out if mealworms respond to sound.

2.   What is the tentative explanation of your research question? (Hypothesis)

The mealworms

Mealworms would respond to sound by moving away from it due to the vibration caused when sound is produced.

3.   In an investigation, there is only one variable to be changed. Which variable will you change in this investigation? (Independent Variable)

The independent variable

Presence of sound and frequency.

4.     All the other variables must be kept constant. List a few important variables that will affect the results greatly. (Controlled Variables)

The controlled variables

Location of the mealworms, the items used to produce sound, the distance between the mealworms and the instruments, the type of mealworms and the number of mealworms

5.     What results will you measure? (Dependent Variable)

The dependent variable

The response by the mealworms to the sound being produced.

6.     State the assumptions that you have made

The assumptions are mealworms will respond to the instrument used to produce sound, the force used to use the instruments is the same, the condition of the mealworms are the same

7.     List the materials and apparatus that you will need to carry out the investigation.

(Materials and Apparatus)

Materials and Apparatus:

C  5 mealworms C  Tuning fork C  Castanet C  Five mealworms CPlastic container C  ______________________

C  _______________________ C  _______________________ C  _______________________ C  _______________________ C  _______________________

8.     List the steps that you will take to carry out the investigation. (Procedure) Include drawing of setup.

Procedure:

  

Step 1: Place the castanet close to the mealworms and clack it.

Step 2: Repeat this for three times placing the castanet near each mealworm.

Step3: Observe and record the reaction of each mealworm.

Step4: Then, switch to tuning fork.

Step5: Hit the tuning fork against a rubber bung.

Step6: Repeat this for three times placing the hitting the tuning fork near each mealworm.

Step7: Observe and record the reaction of each mealworm.

Step8: Repeat this experiment thrice to ensure reliability and accuracy and to avoid human reaction error.

9.     Data collection and organization. (Results)

The data can be presented in the form of tables and/or graphs.

Results: The mealworms did not respond to the castanet but they responded to the tuning fork hen it was moved nearer to them. Some of the mealworms moved away from the tuning fork when it was located near to them.

10.   Explain what your data means. (Data Analysis)

What did you observe and give reasons to your observations.

Data Analysis:

	Dependent Variable: The number of mealworms moved away from the instrument
	Trial 1	Trial 2	Trial 3
Castanet	0	0	0
Tuning fork	3	4	3

11.   What can you deduce from the discussion of your data analysis? (Conclusion)

State if your data support your hypothesis? If not, what would you do? In other words, how can you further improve your design? What do you think have been carried out incorrectly and affected the data collected?

Conclusion: Mealworms only respond to sounds of higher frequencies.

                                                                  

	Length of mealworm: 3.9cm Number of segments: 10 segments Colour: Different shades of brown. Other observable characteristics: The head and the end of its body is between dark brown and black. There are two feelers sticking out on its head. It has 2 legs in each of the first three segments excluding the head.