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

The experiment shown below was done by class 7 pupils to investigate a certain ingredient of tobacco.

The experiment shown below was done by class 7 pupils to investigate a certain ingredient of tobacco.

The ingredient being investigated was:

A. Carbon dioxide
B. Tar
C. Carbon monoxide
D. smoke

Answers

The correct answer is B. Tar

marto answered the question on October 16, 2019 at 08:10

Answer Attachments

Next: Heat reaches the feet of a person seated by the side of a fire by A. Conduction B. Convection C. Radiation D. Convection and radiation

Previous: Standard five pupils at Milimani school did the following experiment.

View more Science Questions and Answers | Return to Questions Index

Exams With Marking Schemes

Related Questions

Heat reaches the feet of a person seated by the side of a fire by A. Conduction B. Convection C. Radiation D. Convection and radiation (Solved)

Heat reaches the feet of a person seated by the side of a fire by

A. Conduction
B. Convection
C. Radiation
D. Convection and radiation

Date posted: October 16, 2019 . Answers (1)
The two forms of energy that do not require any medium for transmission are? A. heat and electricity B. light and heat C. sound and light D. light and... (Solved)

The two forms of energy that do not require any medium for transmission are?

A. heat and electricity
B. light and heat
C. sound and light
D. light and electricity

Date posted: October 16, 2019 . Answers (1)
Use the diagram below to answer the question. (Solved)

Use the diagram below to answer the question.

Which plants best suits the points marked P, M and N respectively in the diagram above

A. Mould, bananas, fern
B. Toad stool, algae, cedar
C. Fern, beans, mushroom
D. Puffball, maize, acacia

Date posted: October 16, 2019 . Answers (1)
Use the diagram below to answer (Solved)

Use the diagram below to answer

What happens to parts S and R when we breathe out respectively?

Date posted: October 16, 2019 . Answers (1)
The blood vessel shown below is known as the. (Solved)

The blood vessel shown below is known as the

A. Vein B. Capillary
C. Vena cava D. Artery

Date posted: October 16, 2019 . Answers (1)
Which one of the animals belong to the same group as rhino in a food chain?A. LionB. AntelopeC. MouldD. Vulture (Solved)

Which one of the animals belong to the same group as rhino in a food chain?

A. Lion

B. Antelope

C. Mould

D. Vulture

Date posted: October 16, 2019 . Answers (1)
Which one of the following foodstuffs serves the role of three? (Solved)

A. Potatoes
B. Milk
C. Oranges
D. Porridge

Date posted: July 28, 2019 . Answers (1)
Which one of the following is made up of the remains of dead plants and animals that makes the soil fertile and helps it retain... (Solved)

Which one of the following is made up of the remains of dead plants and animals that makes the soil fertile and helps it retain moisture?

A. Clay soil
B. Sand soil
C. Loam soil
D. Humus

Date posted: April 26, 2019 . Answers (1)
The reason why an ordinary jiko without a clay lining is not recommended for use is because A.it pollutes the environment B.of the large amounts of charcoal... (Solved)

The reason why an ordinary jiko without a clay lining is not recommended for use is because
A.it pollutes the environment
B.of the large amounts of charcoal used
C.it takes a long time when cooking
D.it gets too hot to hold

Date posted: April 25, 2019 . Answers (1)
Which one of the following pairs of machines belongs to the same group as a ladder? A. Claw hammer and bottle opener B. Spade and... (Solved)

Which one of the following pairs of machines belongs to the same group as a ladder?
A. Claw hammer and bottle opener
B. Spade and fishing rod
C. Staircase and road winding uphill
D. Handcart and wheelbarrow

Date posted: April 25, 2019 . Answers (1)
The reason why coloured water is used in the construction of a liquid thermometer is to A.make it visible B.make it expand faster C.make it absorb more heat D.increase... (Solved)

The reason why coloured water is used in the construction of a liquid thermometer is to

A.make it visible
B.make it expand faster
C.make it absorb more heat
D.increase its density

Date posted: April 24, 2019 . Answers (1)
Which one of the following does not function in the same way as a bicycle dynamo when used to produce electricity? A.hydroelectric generator B.car battery C.diesel generator D.wind driven... (Solved)

Which one of the following does not function in the same way as a bicycle dynamo when used to produce electricity?

A.hydroelectric generator
B.car battery
C.diesel generator
D.wind driven turbines

Date posted: April 24, 2019 . Answers (1)
Which one of the following components is found in all environment (Solved)

Which one of the following components is found in all environment

A.Plants
B.Soil
C.Air
D.Water

Date posted: April 21, 2019 . Answers (1)
Which one of the following is a natural way of lighting a house? Using a A.candle B.torch C.hurricane lamps D.transparent roof (Solved)

Which one of the following is a natural way of lighting a house? Using a

A.candle
B.torch
C.hurricane lamps
D.transparent roof

Date posted: April 21, 2019 . Answers (1)
Which one of the following consists of a pair of plants that cannot make their own food? A.fern and pine B.toadstool and moss C.puffball and mould D.cedar and yeast (Solved)

Which one of the following consists of a pair of plants that cannot make their own food?

A.fern and pine
B.toadstool and moss
C.puffball and mould
D.cedar and yeast

Date posted: April 21, 2019 . Answers (1)
The following are forms of energy: i.heat ii.electricity iii.light iv.sound The two forms of energy that do not require a medium for transmission are A.ii and iv B. i and iii C. i... (Solved)

The following are forms of energy:
i.heat
ii.electricity
iii.light
iv.sound
The two forms of energy that do not require a medium for transmission are

A.ii and iv
B. i and iii
C. i and ii
D. iii and iv

Date posted: April 21, 2019 . Answers (1)
Which one of the following materials will not be required in an experiment to show pressure in a liquid increases with depth? A.tin can B.water C.nail D.collecting jar (Solved)

Which one of the following materials will not be required in an experiment to show pressure in a liquid increases with depth?

A.tin can
B.water
C.nail
D.collecting jar

Date posted: April 21, 2019 . Answers (1)
A sufiria made of steel weighing 1000g floats on water while a nail made of iron weighing 50g sinks. This is because of difference in A.type... (Solved)

A sufiria made of steel weighing 1000g floats on water while a nail made of iron weighing 50g sinks. This is because of difference in

A.type of material
B.shape
C.volume
D.mass

Date posted: April 21, 2019 . Answers (1)
The component that makes up 0.97% of air is used in A.rusting B.preservation of soft drink C.electric bulbs D.making proteins (Solved)

The component that makes up 0.97% of air is used in

A.rusting
B.preservation of soft drink
C.electric bulbs
D.making proteins

Date posted: April 20, 2019 . Answers (1)
Which one of the following consists of a pair of storage pests. A.rats and aphids B.white ants and rats C.aphids and cutworms D.white ants and cutworms (Solved)

Which one of the following consists of a pair of storage pests.

A.rats and aphids
B.white ants and rats
C.aphids and cutworms
D.white ants and cutworms

Date posted: April 20, 2019 . Answers (1)