IB MYP Integrated Sciences e-Assessment : Properties of acids and bases Exam Style Practice Questions- New Syllabus
Question (1 mark)
An MYP year 5 student is carrying out an investigation to see how the pH of the soil affects the growth of mung bean sprouts. The mung bean sprouts germinated one week before the investigation started. This experiment was performed once for each pH value and was done over 10 days. The bean sprouts were watered regularly.
Mung bean sprouts can grow in a range of conditions as shown in the animation below
Select the correct description for the pH of each soil type.
pH = 5
pH = 7
pH = 9
▶️Answer/Explanation
Ans:
pH = 5: This is acidic.
pH = 7: This is neutral.
pH = 9: This is basic (or alkaline).