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SFNA 🏝 ZEC ✓ Official ZEC answers

Science · Paper 1 · 2023

16 questions

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Questions (16)

Section A

2. 5 marks

Match the items from list A with a correct response in list B by writing the letter of the correct response against the item number

(i) List A: Bulb 1 mk
(ii) List A: Torch 1 mk
(iii) List A: Firefly 1 mk
(iv) List A: Tube light 1 mk
(v) List A: Lamp 1 mk

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3. 5 marks

Fill in the blanks by choosing the correct word in the box. Water, 78%, 21%, turning bottom, soil, fixed phones i) When we fill thirsty, we drink some__________________ ii) The thin upper ost layer of the earth crust is called _______________ iii) The percentages of nitrogen in the Air is about ___________ iv) The component used to search radio channel is called______________ v) The type of phone which joined with wire is called____________

(i) When we fill thirsty, we drink some__________________ 1 mk
(ii) The thin upper ost layer of the earth crust is called _______________ 1 mk
(iii) The percentages of nitrogen in the Air is about ___________ 1 mk
(iv) The component used to search radio channel is called______________ 1 mk
(v) The type of phone which joined with wire is called____________ 1 mk

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Section B

4. 6 marks

Answer (i)-(vi), by picking the type of food from a box and to write it on the correct side in the table. Item (i) is an answered example. Peanuts, milik, chicken, Rice, Eggs, fish, maize potatoes,cassava, wheat Carbohydrates Proteins i). Banana Beans ii) iii) iv) v) vi)

(i) Carbohydrates 1 mk
(ii) Carbohydrates 1 mk
(iii) Carbohydrates 1 mk
(iv) Proteins 1 mk
(v) Proteins 1 mk
(vi) Proteins 1 mk

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5. 10 marks

b) (i) Name three (3) states of water i) ________________________________________________________ ii) ________________________________________________________ iii) ________________________________________________________ (ii) Give the difference between hard water and soft water ________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ (c) Write three (3) uses of water i) _______________________________________________________________ ii) _______________________________________________________________ iii) _______________________________________________________________

(b)(i)) Name three (3) states of water 3 mk
(a) Identify three (3) sources of water 3 mk
(a) i)) ____________________________________________________________ 1 mk
(b(i)) Name three (3) states of water 3 mk
(b)(ii) Give the difference between hard water and soft water 4 mk
(a) ii) ____________________________________________________________ 1 mk
(b(ii)) Give the difference between hard water and soft water 2 mk
(c)) Write three (3) uses of water 3 mk
(c) Write three (3) uses of waterS 3 mk

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6. 10 marks

(a) Define the term communication __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ (b) gIve the function of the following components of the radio: i) Antena ______________________________________________________________ ______________________________________________________________ ii) Speaker ___________________________________________________________ ___________________________________________________________ iii) Power Button ___________________________________________________________ ___________________________________________________________ (c) Draw and label the diagram of televishen

(a) Define the term communication 3 mk
(a)) Define the term communication 4 mk
(b(i)) Antena: Function 2 mk
(b)) Give the function of the following components of the radio: i) Antenna ii) Speaker iii) Power Button 3 mk
(b(ii)) Speaker: Function 1 mk
(c)) Draw and label the diagram of television 3 mk
(b(iii) Power Button: Function 1 mk

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Section C

0. 0 marks

Draw and label the diagram of television.

(c) Draw and label the diagram of television. 0 mk

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7. 0 marks

a) Define food nutrient b) Write three (3) examples of food nutrient c) Mentions four (04) symptoms of scurvy

(a) Define food nutrient 0 mk
(a)) Define food nutrient 2 mk
(b)) Write three (3) examples of food nutrient 3 mk
(b) Write three (3) examples of food nutrient 0 mk
(c)) Mention four (04) symptoms of scurvy 5 mk
(c) Mentions four (04) symptoms of scurvy 0 mk

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8. 0 marks

Study the Figure A of given plant and then answer the questions that follow: a) Name the parts labelled by the number 1 to 4 from figure A b) Write the group of plant represented in figure A. c) List four (4) examples of plants named above.

(a) Name the parts labelled by the number 1 to 4 from figure A 0 mk
(b) Write the group of plant represented in figure A. 0 mk
(c) List four (4) examples of plants named above. 0 mk

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