Practical #2

Stage 2: Testing Ideas

       "Do mealworms prefer the smell of vinegar or the smell of air"

Aim of experiment: To find out if mealworms prefer the smell of vinegar or the smell of air?

Hypothesis: The mealworms will prefer the smell of air

Materials: 

-1 clear plastic tube 

-1 clear plastic tube with vinegar infused cotton ball

-stopwatch

-6 mealworms

Procedures: 

1) Place 3 mealworms in the clear plastic tube

2) Place 3 mealworms in the clear plastic tube with vinegar infused cotton ball.

3) Start the stopwatch

4) Wait for 10 mins then stop the stopwatch

5) Observe reactions of the mealworms

6) Record your observations down!

Variables:

Independent- Presence/Absence of vinegar

Dependent- Reaction of mealworm

Constant- Temperature of surrounding air

Observations: The mealworms in the clear plastic tube with vinegar infused cotton ball wanted to escape but the mealworms in the clear plastic tube made no indications that it wanted to move away.

Collect, Record & Interpret Data: On moodle

What are some assumptions made?: 

Collabrated with Guo Bo Hui:

http://bohui106biology.blogspot.sg/