Plant Responses
This practical lesson covers:
- The effect of gravity on the growth of newly germinated seedlings.
Investigating the effect of light on newly germinated seedlings.
Aim:
To investigate the effect of light on the growth of newly germinated seedlings.
Background information:
Plants respond to environmental factors such as gravity and light, which play crucial roles in their growth and development. In this practical, you will investigate how gravity affects the growth of newly germinated mustard seedlings under varying light conditions. By measuring the height of seedlings in different environments, you will observe how these factors influence their growth.
Variables:
- Independent variable - Light exposure.
- dependent variable - Height of seedlings.
- Control variables - Type of seeds, volume of water, germination environment.
Where should the petri dishes be placed during germination?
in a warm place
in a dark cupboard
in direct sunlight
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What should be measured every day for a week?
the height of each seedling
the volume of water in each petri dish
the temperature of the environment
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How long should the height of the seedlings be measured?
for five days
for three days
for one day
for a week
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