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PRACTICAL QUESTIONS FOR BASIC 9 AS VACATION ASSIGNMENT

SUBJECT: INT. SCIENCE CLASS: BASIC 9
NAME: __________________________________________________ DATE: ______________________
Question 1

1. a. Study carefully the diagram of the different types of human teeth below and answer the questions that follow

i. Identify labelled A, B, C and D

ii. Name the parts labelled I and II.
iii. State three difference between A and B.
iv. Name the group of animals which posses all the types of teeth illustrated above.
v. Support your answer with reasons.

b. Study the diagram below and answer the question that follows.

i. Identify the device shown above.

ii. Identify the parts labelled I, II, III, IV and V.
iii. What is the function of each of the parts labelled II and III?
iv. What is the importance of the device?
v. Mention two areas where the device is used.
e. The figure below is an illustration of the organisms associated with farm animals. Study the figure and answer the
questions that follow

i. Identify each of the organisms A and B without giving reasons.

ii. In which parts of the host do organisms A and B live?
iii. State two effects of
𝛼. organisms A on the host
𝛽. organism B on the host

iv. State two features that make each of the organism successful in their habitats.
v. State one method of controlling each of the ‘organism A and B.

d. Study the hazard symbols A and B carefully and answer the questions that follows.

i. What type of hazard does each symbol warn us about?

ii. From the shape, state where you might find them.
iii. What colours would be used in the symbols?
iv. Name two substances they might refer to?
v. What word/words might be below the symbols?
Question 2
l. a. Illustrations below are parasites that live outside the body of animals. Study the illustrations carefully and answer
the questions that follows

i. Identify each of the parasite labeled A, B, C and D

ii. Give one host organism of each of A, B, C and D
iii. State three effects of A on its host organisms 1 mark each

b. The diagram is a ray of light which passed from air to Study of and answer the questions that follow

i. Mention the names of the parts of the diagram

𝛼. NO,
𝛽. i
𝛾. r
ii. What is AO and OB represent?
iii. Give one reason why the ray bond toward N as it travels from air to water
c. In an experiment, a beaker is half field with water and a drop of dye is placed in it with the aid of a dropper. Study
the diagram and answer the questions that follow

i. Give the name of the experiment

ii. Name three substances which can be used in place of the dye
iii. What would be observed if the set-up as allowed to stand for five minutes
iv. What conclusion could be drawn results of such an experiment 8marks

d. The illustration shows food web Study it and answer the questions that follow

i. Which of the organisms is a herbivore?

ii. List three carnivores
iii. List three prey organisms, in the food web
iv. Identify any five-food chain within the food web
Question 3
a. The funnel in the diagram below contains equal amount of different type of soil labeled K, L and M. Equal
volume of water were poured onto each soil at the same time and allowed to drain for 20 minutes.

(i) What is the aim of the experiment? [2 marks]

(ii) Which soil has the highest rate of drainage? [1 mark]
(iii) Which soil has the highest water retention capacity? [1 mark]
(iv) Which soil is most likely to lose water and dry faster after rainfall? [1 mark]
(v) Which soil is most likely to be waterlogged after rainfall? [1 mark]
(vi) Which of the soil types would be suitable for maize cultivation? [1 mark]

b. The diagram below illustrates hazard symbols labelled I, II, III and IV.
Study the diagram carefully and answer the questions that follow

(i) What does each of the symbols labelled I, II, III and IV represent?
(ii) Name one substance each that is associated with:
(α) I;
(β) II;
(γ) III. [3 marks]
(iii) Name a place where the hazard symbol labelled IV is often displayed [1 mark]
(iv). Which of the symbol(s) is / are found on chemical containers? [3 marks]
c. In an experiment, four nails 1, 2, 3 and4 are fixed with candle wax onto a metal bar and one end of the bar is heated
by means of boiling water as shown in the diagram below

--------------- A B C D
-
Boiling water ------
--
--------------- 1 2 3 4
-

A, B, C, D are thermometers inserted in holes along the bar to measure the temperatures at the various points.
(i) What is the temperature of the boiling water?
(ii) State the observations that will be made about nails 1, 2, 3 and 4
(iii) State the observations that will be made about the temperatures recorded by thermometers A, B, C and D.
(iv) What mode of heat transfer is demonstrated in the experiment
(v) State one effect of heat that is associated with the experiment
(vi) State the aim of the experiment

d. In an experiment the following activities were carried out on two green leaves A and B.
Leaf A was from a plant placed in the sunlight for some time while leaf B was from a plant placed in a dark cupboard
for24 hours.
Activity
I. Leaves dipped in boiling water for 1 minute
II. Leaves dipped in warm alcohol
III. Leaves washed in cold water
IV. Leaves dipped into iodine solution
After dipping in the iodine solution, it was observed that leaf A changed colour while leaf B did not change colour.
1. Explain why each of the activities I, II, III and IV was carried out
2. State the colour change of leaf A
3. Explain why leaf A changed colour but leaf B did not
4. Suggest an aim for the experiment
Question 4
1. a. Consider the set up below.

HCl (aq)

I
II
IV
III V
NaOH (aq)

Titration set up of neutralization reaction

i. Name the method of preparation illustrated by the set up

ii. Identify the parts labelled I, II, III, IV and V
iii. Give one function each of the I, IV and V
iv. Outline two safety precautions to be taken during the above preparations 10 marks

b. The figure below is an illustration of a part of the human body. Study it carefully and answer the questions that
follow.

II III
IV
V

VI

i. Identify the parts of the human body illustrated.

ii. Name the parts labelled I, II, III, IV, V and VI
iii. Which parts secrets bile?
iv. What is the function of the bile?
v. List two enzymes associated with digestion. 10 marks
c. Study the diagram below and answer the questions that follow

I
II IV

III
V

i. Identify the diagrams A and B above.

ii. Name the parts labelled I, II, III, IV and V.
iii. Give the functions each of II and IV
iv. Outline one difference between A and B. 10 marks

d. To determine the density of a piece of a wood a cuboid of it was used. The mass and volume of the cuboid were
then determined. The figure (a) shows the dimensions 3, 4, 2 of the cuboids while (b) shows the cuboid on
weighing scale with full scale reading of 100kg.

3 2

i. Calculate the volume of the cuboid

ii. Read and record the mass (m) of the cuboid
iii. Calculate the density of the piece of the wood.
iv. State two instruments used to measure the length of an object
Question 5
1. (a) Study the diagram below and answer the questions that follow.

(i) Identify each of the parts labeled I, II, III and IV. [4 marks]
(ii) Which of the parts labeled is used for tearing and griding food? [2 marks]
(iii) Describe the structure mentioned in 1ii. [2 marks]
(iv) What is the name given to I and II? [2 marks]

(b) The diagram below is an illustration of a set-up used by a student in an experiment to make
a magnet. Study it carefully and answer the questions that follow.

(i) Mention the method of magnetization used by the student. [2 marks]

(ii) Identify the parts labelled I and II. [2 marks]
(iii) After 5 minutes pins are brought closed to the soft iron bar. Sate the observation
that would be made. [3 marks]
(iv) Give three examples of ferromagnetic substances. [3 marks]

(c) The diagram below illustrates a farm land on a sloppy area. Study the diagram carefully and
Answer the questions that follow
(i) What process is likely to occur on the farm land when it rains heavily? [2 marks]

(ii) State two farming practices that can also lead to the process mentioned in (i) above. [2 marks]
(iii) List three farming practices that could be used to control the process. [3 marks]
(iv) Mention three soil resources that could be depleted from the farm land when it rains
heavily. [3 marks]
 (d) The diagram below is an illustration of a set -up a student used to demonstrate a
Certain property of acids. Study it carefully and answer the questions that follow.

(i) What property of acids is demonstrated by the student? [2 marks]

(ii) Identify the parts labelled I, II and III [3 marks]
(iii) State the observation most likely to occur in the experiment. [2 marks]
(iv) Mention three other acids that could be used in place of dilute hydrochloric acid. [3 marks]

Question 5
a. In an experiment to demonstrate a property of light, three cardboards, A, B and C with holes in their centres are
arranged in a straight line between a lighted bulb and an observer as shown in the illustration below.
Study the illustration carefully and use it to answer the questions that follow

(i) What would the observer see from the position shown?
(ii) What would the observer see when cardboard B is slightly displaced from the line?
(iii) Explain the observation made in (a)(ii) above.
(iv) What would be observed when the cardboard B is brought back to its original position?
(v) What property of light is being demonstrated in this experiment?
(vi) Mention
(α) two natural occurrences that could be explained by the property of light demonstrated.
(β) one device that works on the property of light demonstrated.
(b) The diagrams below are illustrations of hazard symbols found in everyday life.
Study them carefully and use them to answer the questions that follow:

(i) What does each symbol A, B, C and D represent?

(ii) Name one substance each that is associated with each of the symbols A, B and C
(iii) Name one place where the symbol D can be found.
(iv) State two advantages of hazard symbols.
(c) The diagrams below are illustrations of the different types of teeth in humans.
Study them carefully and use them to answer the questions that follow:

(i) Identify each type of teeth labeled A, B and C

(ii) Describe the shape of each of the teeth labeled A, B and C
(iii) State one function of each of the teeth labeled A, B and C
(iv) Name the parts of the teeth labeled I and II [10 marks]
(d) The diagrams below are illustrations of some farm tools.
Study them carefully and use them to answer the questions that follow:

(i) Identify each of the tools labeled A, B, C, D and E.

(ii) Mention one use of each of the tools labeled A, B, C, D and E.
 Question 6
a. (i) Identify G.

(ii) Name the parts labelled I, II, III and IV.

(iii) State one function of the parts labelled I, II, III and IV.
I

II

III
IV

b. The Set-up below shows air being breathed out through the mouth into test-tube containing lime water.

(i) Why does the lime water turn milky?

(ii) Identify the milky substance produced
(iii) Write a balanced chemical equation for the reaction
(iv) Name two other substances present in breathed out air
(v) What is the aim of the experiment?
c. The diagrams below are illustrations of an experiment in the labotatory using a piece of stone, a cork of mass
40g and other necessary materials

Thread

50 50 50
40 40 40
30 30 30
20 20 20
10 10 10
Stone Cork

Set up A Set up B Set up C

The initial volume of water in A was read and noted. A string was attached to a piece of stone and the stone lowered
gently into the water as shown in B. The volume was again read and noted.
Finally, the cork of mass 4.0g was attached to the stone and both materials lowered gently into the water as shown in C.
The volume was read and noted.
(i) What is the volume of the
(a) Stone? (b) cork?
(ii) Calculate the density of the cork
(iii) Why were the materials lowered gently into the water?
(v) Why was it necessary to attach the stone to the cork before lowering it gently into the water as shown in
diagram C?

d. (i) M is a list of plants and N is a list of vegetative structures in N.

M
Cocoyam yam sugarcane Plantain pineapple cassava Ginger onion

N
Bulb corm rhizome Sucker slip tuber Stem cuttings

(ii) Mention one use of each of the following

(a) Sickle (b) garden fork

e. The diagram below shows the arrangement of parts of soil when some sample was shaken in a glass cylinder and
allowed to settle

II

III

IV

VI

i. Name the part labelled I, II, III, IV, V and VI.

ii. Which part labelled contain organic matter?
iii. Which of these layers does not have the ability to hold water?
iv. Which part will you choose when growing crops?
v. Which part has the ability to hold water?
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TO BE A
BLESSING TO
HUMANITY.
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