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Seketul tumbuhan air (Hydrilla) dalam larutan natrium hidrogenkarbonat; sebuah lampu diletakkan pada 30 cm, 20 cm dan 10 cm untuk mengubah keamatan cahaya. Gelembung oksigen dikira selama 2 minit pada setiap keamatan.
Bagaimanakah anda mengendalikan pembolehubah dimanipulasi dalam eksperimen ini?
A water plant (Hydrilla) in sodium hydrogencarbonate solution; a lamp is placed at 30 cm, 20 cm and 10 cm to change the light intensity. Oxygen bubbles are counted for 2 minutes at each intensity.
How do you handle the manipulated variable in this experiment?
Bahasa Melayu
Seketul tumbuhan air (Hydrilla) dalam larutan natrium hidrogenkarbonat; sebuah lampu diletakkan pada 30 cm, 20 cm dan 10 cm untuk mengubah keamatan cahaya. Gelembung oksigen dikira selama 2 minit pada setiap keamatan.
Bagaimanakah anda mengendalikan pembolehubah dimanipulasi dalam eksperimen ini?
English
A water plant (Hydrilla) in sodium hydrogencarbonate solution; a lamp is placed at 30 cm, 20 cm and 10 cm to change the light intensity. Oxygen bubbles are counted for 2 minutes at each intensity.
How do you handle the manipulated variable in this experiment?
[1 mark]
🧭Modelled on Trial paper · Kertas 3 · Q1(bii)
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