مركز الاختبارات الالكترونية

TALAEE AL EMAN INT'L INDIAN SCHOOL, MAKKAH (Science 8)

SCIENCE 8 FINAL TERM EXAMINATION SESSION: 2020 - 2021

Under Ministry of Education KSA

General Instructions:

Read the questions carefully.

Marks are indicated against each question.

Check your paper before you submit it.

A tadpole develops into an adult frog by the process of

Fertilization
Metamorphosis.
Embedding.
Budding.

) The number of nuclei present in a zygote is

One.
Two.
Four.
None.

Reproductive age in women starts when their

menstruation starts.
breasts start developing.
body weight increases.
height increases

Which of the following is NOT a planet of the sun?

Mercury
Saturn
Sirius
Earth

Which of the following is not a greenhouse gas?

Carbon dioxide
Sulphur dioxide
Methane
Nitrogen

Unicellular organisms have one-celled body.

true
false

Each sperm is a single cell.

true
false

A new human individual develops from a cell called gamete.

true
false

An embryo is made up of a single cell.

true
false

Mercury is the smallest planet of the solar system.

true
false

The size of the pupil becomes [ ................... ]when you see in dim light.
large
small
wide

Night birds have[ ................... ]cones than rods in their eyes.
equal
more
less

The planet which is farthest from the sun is[ ................... ].
Marse
Neptune
Jupiter

The planet which appears reddish in colour is[ ................... ].
Mars
Earth
Mercury

A group of stars that appear to form a pattern in the sky is known as a [ ................... ].
satellite
steroid
constellation

Match the column.

Saturn
Great Bear
Moon
Mars
Inner planets
Outer planet
Constellation
Satellite of the earth

Where are chromosomes found in a cell? State their function.

Explain the importance of reproduction in organisms.

How many images of a candle will be formed if it is placed between two parallel plane mirrors separated by 40 cm?

What is the term used for secretions of endocrine glands responsible for changes taking place in the body?

In which female reproductive organ does the embryo get embedded?

‘Cells are the basic structural units of living organisms’. Explain.

State the laws of reflection.

Explain the differences between pure air and polluted air.

Clear, transparent water is always fit for drinking. Comment.

Define adolescence.

Why does the increased level of nutrients in the water affect the survival of aquatic organisms?

Explain the differences between pure air and polluted air.

You are a member of the municipal body of your town. Make a list of measures that would help your town to ensure the supply of clean water to all its residents.

What are the different ways in which water gets contaminated?

List changes in the body that take place at puberty.

Differentiate between regular and diffused reflection. Does diffused reflection mean the failure of the laws of reflection?

Describe the ‘Greenhouse Effect’ in your own words.

What are sex hormones? Why are they named so? State their function.

Experiment 1. (Student will mention whether he has sent it or not)

Experiment 2. (Student will mention whether he has sent it or not)

Attendance. (Student will write nothing)

Daily and holidays home work. (Student will write nothing)

Behaviour. (Student will write nothing)

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