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SCIENCE (Class 8 )
MULTIPLE CHOICE QUESTIONS :
1. The variety of coal which has highest content of carbon :
a) Peat b) Bituminous c) Anthracite d) Liquate
2. The microbe that reproduce only inside the body of the host organism :
a) Bacteria b) Virus c) Protozoa d) Fungi
3. Deforestation means :
a) Cleaning of forests b) To grow plants c) To look after plants d) None of these
4. Project - Tiger means :
a) Hunting of tigers b) Rearing of tigers c) Survival & maintanance of tigers d) All of these.
5. Bats can hear the sound of frequency :
a) Less than 20 hz b) More than 20 khz c) Between 20 hz and 20 khz d) All of these.
FILL IN THE BLANKS :
1. The image of our face in a plane mirror is an example of ___________ image.
2. The process of depositing a layer of any desired metal on another material by means of electricity is called ______________.
3. Large amplitude of sound vibrations will produce __________________________ .
4. Animals whose numbers are diminishing to a level and they might face extinction are called ________.
5. Distilled water is _________________ of electricity.
SHORT ANSWER TYPE QUESTIONS :
1. Give three examples of electroplating.
i) .................................... ii) ................................... iii) ....................................
2. What do you mean by music sound ?
3. What is fractional distillation ?
4. Name the carrier of Dengue fever.
5. Why should we save our fossil fuels ?
Please refer to attached file for CBSE Class 8 Science Worksheet - Revision Worksheet (2)