Answer:
The scientific method
1. Make observations
e.g dry cowpea seeds do not germinate. They only germinate when they are planted in the soil and watered.
2. Identify Problem
3. Formulate Hypothesis.
Hypothesis is a reasonable explanation for a particular observation or natural phenomenon.
e.g Cowpea seeds need water to germinate.
4. Design experiment
5. Conduct experiment
e.g Label three containers A,B and C and place dry cotton wool in the bottom of each. Place ten dry Cowpea seeds in each container. Add just enough water to B to soak the cotton wool and wet the seeds. Add water to C until the seeds are completely covered with water. Leave A dry(control). set aside the containers at room temperature for a week.
6. Analyse results and draw conclusions
e.g- A None of the cowpeas germinated
B Eight cowpeas germinated well
and showed healthy growth.
C Five cowpeas just started to germinate then stopped.
Analysis; Cowpeas kept under condition A do not germinate, while most of those kept in mosit conditions B germinated. However, too much water C seems to prevent Normal germination. This may be due to the fact that the germinating seeds in C didn't get enough air.
7. Share findings
In this experiment, the quality of the Cowpeas could not be controlled. This might account for the Cowpeas that didn't germinate in B.
8. Accept hypothesis
9. Theory
10. Law
In conclusion; Cowpeas need water to germinate, hence the hypothesis is verified. However, too much water seems to prevent Normal germination.
PeAcE.
