Study resources on Kenyaplex

Get ready-made curriculum aligned revision materials

Exam papers, notes, holiday assignments and topical questions – all aligned to the Kenyan curriculum.

Or go directly to:

Class notes Holiday assignments Topical questions Other resources

When pupils heated some garden soil, smoke was produced. The observation made indicated the presence of

When pupils heated some garden soil, smoke was produced. The observation made indicated the presence of
A. organic matter
B. air
C. mineral particles
D. water.

Answers

The correct answer is A. organic matter

sharon kalunda answered the question on July 29, 2019 at 13:59

Answer Attachments

Next: Which one of the following soil conservation measures is least suitable on a large piece of land?

Previous: Pupils went for a nature walk and observed a plant with yellow fruits and thorns on the stem. The plant observed was likely to be

View more KCPE Science Questions and Answers | Return to Questions Index

Exams With Marking Schemes

Related Questions

Which one of the following soil conservation measures is least suitable on a large piece of land? (Solved)

Which one of the following soil conservation measures is least suitable on a large piece of land?
A. Terracing.
B. Mulching.
C. Tree planting.
D. Contour farming.

Date posted: July 29, 2019 . Answers (1)
Which one of the following nutrients is required for the formation of blood in expectant mothers? (Solved)

Which one of the following nutrients is required for the formation of blood in expectant mothers?
A. Vitamin D.
B. Calcium.
C. Phosphorus.
D. Iron.

Date posted: July 29, 2019 . Answers (1)
Which one of the following is a safety measure against lightning when it is raining? (Solved)

Which one of the following is a safety measure against lightning when it is raining?
A. Leaning against walls.
B. Walking on open areas.
C. Wearing rubber shoes.
D. Using an umbrella.

Date posted: July 29, 2019 . Answers (1)
Which one of the following is a transparent material? (Solved)

Which one of the following is a transparent material?
A. Kerosene.
B. Mirror.
C. Frosted glass.
D. White paper.

Date posted: July 29, 2019 . Answers (1)
Heat transfer in liquids and gases mainly takes place through (Solved)

Heat transfer in liquids and gases mainly takes place through
A. radiation
B. convection and conduction
C. convection
D. conduction and radiation.

Date posted: July 29, 2019 . Answers (1)
In an investigation on factors affecting sinking and floating pupils carried out the following activities: (i) Placed a bottle top in water. (ii) Made the... (Solved)

In an investigation on factors affecting sinking and floating pupils carried out the following activities: (i) Placed a bottle top in water.
(ii) Made the same bottle top into a ball and placed it on water.
Which one of the following factors were the pupils investigating?
A. Size.
B. Shape.
C. Type of material.
D. Mass.

Date posted: July 29, 2019 . Answers (1)
In which one of the following is friction an advantage? (Solved)

In which one of the following is friction an advantage?
A. Skating on ice.
B. Swimming in water.
C. Production of heat in moving parts.
D. Braking of a bicycle on a road.

Date posted: July 29, 2019 . Answers (1)
Which of the following pairs of machines consists only of inclined planes (Solved)

Which of the following pairs of machines consists only of inclined planes
A. Ladder and staircase.
B. Staircase and wheelbarrow.
C. Claw hammer and ladder.
D. Spade and craw bar.

Date posted: July 29, 2019 . Answers (1)
The method of grazing that would require the largest piece of land to practice is (Solved)

The method of grazing that would require the largest piece of land to practice is
A. herding
B. stall feeding
C. tethering
D. paddocking.

Date posted: July 29, 2019 . Answers (1)
Which one of the following pairs consists only of farm animals that produce mutton? (Solved)

Which one of the following pairs consists only of farm animals that produce mutton?
A. Cow and goat.
B. Goat and sheep.
C. Cow and sheep.
D. Sheep and pig.

Date posted: July 29, 2019 . Answers (1)
The chart below shows a simple classification of plants. Which of the following pairs represents Y and Z (Solved)

The chart below shows a simple classification of plants.

Which of the following pairs represents Y and Z
Y------------- Z
A Carrots --------Sisal
B Kale ----------Onion
C Moss ----------Cypress
D Sugarcane------- Fern

Date posted: July 29, 2019 . Answers (1)
Which one of the following pairs consists only of plants that directly feed on insects? (Solved)

Which one of the following pairs consists only of plants that directly feed on insects?
A. Pitcher plant and sundew.
B. Mushroom and butter wort.
C. Sunflower and pitcher
D. Sundew and toadstool.

Date posted: July 29, 2019 . Answers (1)
Pupils constructed a weather instrument Inner tube The mistake made in the construction was (Solved)

Pupils constructed a weather instrument Inner tube

The mistake made in the construction was
A. Using coloured water
B. Placement of the scale
C. Using a narrow tube
D. Closing the cork tightly.

Date posted: July 29, 2019 . Answers (1)
Which one of the following components of blood is correctly matched with its function? (Solved)

Which one of the following components of blood is correctly matched with its function?
Blood component------------------- Function
A. Red blood cells-------------------- clotting of blood
B. White blood cells------------------- transport oxygen.
C. Platelets -------------------------- fight germs.
D. Plasma -----------------------------transport food.

Date posted: July 29, 2019 . Answers (1)
Use of excess fertilizers will mainly pollute (Solved)

Use of excess fertilizers will mainly pollute
A. Soil and water
B. Water only
C. Soil and air
D. Soil only.

Date posted: July 29, 2019 . Answers (1)
Which one of the following pairs consists only of components of environment that produce carbon dioxide? (Solved)

Which one of the following pairs consists only of components of environment that produce carbon dioxide? A. Air and plants.
B. Animals and plants.
C. Water and air.
D. Soil and animals.

Date posted: July 29, 2019 . Answers (1)
Which one of the following groups of symptoms is correctly matched with the deficiency disease? (Solved)

Which one of the following groups of symptoms is correctly matched with the deficiency disease?
Rickets------- ------Anaemia------------- Kwashiorkor
A. Bowlegged-----------brown hair----------- wrinkled face.
B. Knock kneed---------pale eyes------------ potbellied.
C. Rapid heartbeat -----potbellied--------- breathlessness
D. Brown hair ----------wrinkled face -------bowlegged.

Date posted: July 29, 2019 . Answers (1)
Which one of the following consists of foods that are mainly for body building? (Solved)

Which one of the following consists of foods that are mainly for body building?
A. Beef, cassava, potatoes.
B. Mutton, maize, pawpaw.
C. Peas, beans, eggs.
D. Carrots, bananas, tomatoes.

Date posted: July 29, 2019 . Answers (1)
Which one of the following is a source of electricity? (Solved)

Which one of the following is a source of electricity?
A Torch.
B Dam.
C Solar panel.
D Biogas plant.

Date posted: July 29, 2019 . Answers (1)
Formation of a rainbow can be demonstrated by the following activities except when (Solved)

Formation of a rainbow can be demonstrated by the following activities except when
A. Observing the sun through a horizontally-held transparent biro pen casing
B. Placing a mirror in water to face the sun
C. Spraying water in the air from the mouth in bright sunshine
D. Placing a biro pen casing on water in a glass container.

Date posted: July 29, 2019 . Answers (1)