Hot Integrated Science Questions For WASSCE

Below are some WASSCE Science questions for Candidates. Candidates are advised to solve these Integrated Science questions for WASSCE.

Integrated Science Questions For WASSCE

1. (a) An atom of an element X has the electron configuration; 2, 8, 6.

(i) State the group and period the element is found in the periodic table.

(ii) Write the formular of the compound formed when element X and sodium react.

(iii) State the type of compound formed when element X and sodium react

(iv) State three physical properties of the type of compound formed when element  X and sodium react.

(b) (i) Distinguish between density and relative density.

(ii) State Archimedes’ principle.

(iii) An object weighs 250 N in air and 130 N when completely immersed in water. Calculate the relative density of the object.

(c) (i) State two functions of the mammalian skeleton.

(ii) Name the type of vertebrae found in each of the following regions of the backbone:

I. neck region;

II. tail region;

III. abdominal region.

(d) (i) What is biotechnology?

(ii) State three applications of biotechnology.

2.(a) (i) What is a mixture?

(ii) Name the most appropriate method that could be used to separate a mixture of each of the following pairs of substances.

I. water and palm oil;

II. sodium chloride and water.

(b) (i) Name one instrument used in detecting radioactive emissions.

(ii) State how each of the following radiations are affected by a magnetic field:

I. particles: α-

II. B particles;

III. y rays. –

(c) List two structures found in:

(i) plant cells only;

(ii) both animal and plant cells.

(d) (i) What is homeostasis?

(ii) Name three processes in the water cycle that takes water into the atmosphere.

(e) (i) State Ohm’x law.

(ii) Classify the following materials as electrical conductor or insulator: air; paper; iron; pure water, aluminium; salt solution; plastic; lime juice; glass, stone.

(iii) Give one example of a semi-conductor.

3. (a) A battery transfers energy to a filament bulb in a circuit. State:

(i) the form of energy in the battery;

(ii) the two forms of energy emitted by the filament bulb;

(iii) what happens to the amount of energy in the battery;

(iv) the energy transformation that takes place in the circuit.

(b) (i) What is an alloy?

(ii) State two advantages of alloys.

(iii) Name the constituent elements of each of the following alloys:

I. brass;

II. stainless steel.

(c) (i) What is a hormone?

(ii) Name the hormone produced by each of the following organs:

I. pancreas;

II. ovaries;

III. testes.

(iii) Give one effect of underproduction of each of the hormones named in 8(c)(ii).

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(d) State two reasons why ecological studies is important.