8/17/2019 8 Science Unit 1

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Written by: - SHAHZAD IFTIKHAR  Contact # 0313-7891989, 0333-5319544e-mail: shahzad2sunny@hotmail.com website: www.eservicespakistan.com 

GENERAL SCIENCE FOR 8TH CLASS (UNIT # 1) 

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SHORT QUESTIONS

>> Question: What is basis of classifying living things?

There are three basis on which living things are classified by scientists: -

i) 

Number of cells.ii)  Nucleus of cells is surrounded (اوہاريهگ) by membrane  .) or notجهلی)

iii)  How living things get food? 

>> Question: List the five kingdom system into which living things aregrouped?

Kingdom  Example 

Animals DogPlants RoseFungi MushroomProtists Amoeba

Monera Bacteria

LONG QUESTOINS

>> Question: Explain how a living thing gets a scientific name?

A Swedish  scientist Linnaeus developed method of naming living things. He used

Latin words. In this system each living thing was given the name consists (  ہونمشتمل

) oftwo parts: -

i) 

First part of the name shows its species (   قس نوع ). This must be written

by capital letter.ii)  Second part of the name shows the genus (سنج). This must be written

by small letter.

For example the name of house dog is Canis familliaris.

>> Question: State the advantages (ےدئاف) of classification (یدنب ہور )?

i)  To make the study of living things easier ( سا  ) and systematic (لوصااب).

ii) 

Biologists divide organisms into different groups. These groups containplant and animals that are alike (   جيساي ).

iii) 

The method (ہقيرط) of grouping living organisms into groups is called

classification (   بندگروہ ).iv)

 

Classification helps to make generalizations  ) and to makeتعميم)

predictions (   گوئيشن ).