Seed Germination Required Practical Flashcards
1
Q
Describe the method for the seed germination practical
A
- Set up 3 petri dishes with cotton wool soaked in equal amounts of water
- Place 10 mustard seeds in each petri dish
- Put the mustard seeds in a warm place. Do not move or disturb them
- Allow the mustard seeds to germinate.Water them with equal amounts of water daily
- Make sure there are equal amounts of seeds that have germinated in each petri dish. Remove any that have not germinated
- Measure the height of each seedling in mm
- Move petri dishes into position
- Put one on the windowsill in full sunlight
- Put second one in partial light
- Put third one in darkness
- Measure the height of each seedling every day for 5 consecutibe days
- Record the height in a table
2
Q
What is the independent variable in this reaction
A
The independent variable are the conditions in which the seeds are grown
3
Q
What is the dependent variable
A
The dependent variable is the height of each seedling in mm
4
Q
What is the control variables
A
- amount of seedlings germinated
- Time frame of growth
- The amounts of water that the seeds are given