Education

Integrated Science Questions For WASSCE 2023 Candidates

2023 WASSCE Biology Questions

We have compiled some likely Integrated Science questions for WASSCE 2023 students who will be writing this year. These questions were selected based on some confirmed topics. Candidates should go through them and solve those without answers.

Integrated Science Questions For WASSCE 2023 Candidates

1. (a) (i) What is a transistor?
(ii) Explain how a transistor behaves as a switch.

(b) (i) Explain the term poultry.
(ii) State four reasons for keeping poultry.

(d) (i) What are x-rays?
(ii) State two dangers associated with over exposure to x-rays.

2. (a) (i) What is plant tissue culture?
(ii) State three advantages of propagating a plant by tissue culture.

(b) (i) Explain the term parturition as applied to animal production.
(ii) State three signs shown by an animal when parturition is about to occur.

(c) Draw and label a ray diagram to show how the image of a point object is seen in a
Plane mirror. [5 marks]
(d) A piece of zinc metal was placed in a beaker containing dilute hydrochloric acid.
(i) Write a balanced chemical equation for the reaction that took place.
(ii) If 10.4g of zinc was placed in the hydrochloric acid, determine the
Amount, in moles of hydrochloric acid, that would be required to react with the
Zinc completely.
[zn = 65.4, h = 1, cl = 35.5]

3. (a) Explain the following terms as applied to sound waves:
(i) Frequency;
(ii) Loudness;
(iii) Pitch.

(b) (i) What is crop rotation?
(ii) State two advantages of crop rotation.

(c) (i) List three kingdoms used in the classification
Of living things.
(ii) State two reasons for classification of living things.

(d) (i) Explain briefly how each of the following processes occurs:
(i) Melting of a solid;
(ii) Condensation of a gas.