They need to collect temperature and length of the plant. They will need a yard stick and a thermometer.
Answer: A graduated cylinder with a meter stick will provide them qualitative data.
Explanation:
The experiment will require temperature control to see the growth of duck weed.
The experiment will also require meter stick to measure the height of the duck weed in the aquarium.
Then at temperature the height of plants will be measured to get qualitative data.The height of plants will be considered as qualitative data.
