This post is the list of PEKA experiments for SPM Biology Form 4 from Berry Berry Easy. It is advisable that students read all of these experiments from Chapter 1: Introduction to Biology before heading in so as to be better prepared. So do read this post.
Berry List of Biology Experiments (PEKA) Form 4 (Part 1)
Chapter 1 – Introduction to Biology
List of PEKA experiments:
- Conducting an experiment to study the fitness level of students
- Making bread using yeast in the absence and the presence of sugar
| Number | Activity 1.1 (Experiment) |
| Pg. | 1 |
| Title | Conducting an experiment to study the fitness level of students |
| Aim / Objective of the Study | To study the fitness level of students / To determine cardiovascular fitness by measuring a person’s pulse rate before and after a given period of vigorous exercise |
| Problem Statement | How does the fitness level of students affect the time taken for pulse rate to return to normal? |
| Hypothesis | The fitter the student, the shorter the recovery time |
| Variables |
|
| Material | - |
| Apparatus |
|
| Technique used | (The step test) Measure and record the time taken for the student’s pulse rate to return to normal |
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| Number | Activity 1.2 (Experiment) |
| Pg. | 3 |
| Title | Making bread using yeast in the absence and the presence of sugar |
| Aim / Objective of the Study | To study the effect of sugar on the increase in size of the dough |
| Problem Statement | How do the absence and the presence of sugar affect the time taken for the dough to double its size? |
| Hypothesis | The time taken for the dough to double its size is shorter if sugar is present |
| Variables |
|
| Material |
|
| Apparatus |
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| Technique used | Measuring and recording the time taken for the dough to double its size |
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