Page 77 - Hybrid PBD Sains TG1_Edisi Guru

Sains Tingkatan 1 Bab 3
4. Jalankan eksperimen di bawah. SP 3.1.2 TP3 KBAT Mengaplikasi
Carry out the experiment below.

Eksperimen
Eksperimen

Tujuan: Mengkaji bagaimana tindakan biologi memberi gerak balas kepada kiraan nadi
Aim: To study how biological actions respond to the pulse count

Pernyataan masalah: Adakah kiraan nadi semakin meningkat apabila melakukan tugas yang berat?
Problem statement: Does the pulse count increase when carrying out heavy tasks?

Hipotesis: Kiraan nadi meningkat apabila melakukan tugas yang berat.
Hypothesis: Pulse count increases when carrying out heavy task.

Pemboleh ubah / Variables:
(a) Pemboleh ubah dimanipulasikan: Jenis aktiviti
Manipulated variable: Type of activities
(b) Pemboleh ubah bergerak balas: Kiraan nadi
Responding variable: Pulse count
(c) Pemboleh ubah dimalarkan: Masa yang diambil
Constant variable: Time taken

Radas: Jam randik Simulasi
Apparatus: Stopwatch Jam Randik untuk Pengukuran Nadi
Stopwatch for Pulse Measurement
Prosedur / Procedure:

1. Bekerja dalam kumpulan seramai tiga orang.
Work in a group of three.

2. Setiap murid dalam kumpulan dikehendaki menjalankan aktiviti yang berlainan.
Each student in a group is required to do different activity.
3. Murid 1 berehat di atas kerusi, murid 2 berjalan di dalam kelas dan murid 3 perlu berlari beberapa
pusingan mengelilingi padang.
Student 1 rests on a chair, student 2 walks in the classroom and student 3 runs around the school field.
4. Aktiviti dilakukan selama 10 minit.
The activities are carried out for 10 minutes.
5. Kemudian, kiraan nadi setiap murid diambil selama satu minit dan bacaan direkodkan dalam jadual
di bawah.
Then, the pulse count of each student is recorded for one minute and the readings are recorded in the table below.

Keputusan / Results:

Murid Murid 1 Murid 2 Murid 3
Student Student 1 Student 2 Student 3
Kiraan nadi Berdasarkan aktiviti murid
Pulse count Based on the student’s activity

Kesimpulan / Conclusion:
Selepas melakukan tugas yang berat, kiraan nadi meningkat .

After doing heavy tasks, the pulse count increases .

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03 HYBRID SAINS TG1.indd 36 27/07/2021 12:13 PM