SSLC (English Medium) इयत्ता ६ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

Malar’s mother was preparing to cook dinner. She accidentally mixed ground nuts with urad-dhal. Suggest a suitable method to separate the two substances so that Malar can have ground nuts to eat.

Visit a nearby paddy field and rice mill and note down the different separating techniques used there. Is technology replacing some traditional practices?

The gas given out during photosynthesis is _____.

What is meant by separation?

What are the steps involved in the separation of sand, salt, and water?

Match the following

Complete the Analogy.

______: Diarrhoea:: Marasmus: Slow body growth.

______ is an instrument used in electric circuits to find the quantity of current flowing through the circuit.

______ are used to connect devices.

Circle the odd one out. Give reason for your choice

Biscuits kept open on a plate during monsoon days lose its’ crispness. Why?

Mention the method of separation of Bran from flour. Explain.

B – Iodine – cretinism
Iron – ______.

Give some mineral deficiency diseases.

The percentage of oxygen in the exhaled air of respiration is ______.

______ respire using their skin.

______ discovered nitrogen.

Jan Ingenhousz showed that chlorophyll is essential to the plant to carry out photosynthesis.

Analogy:

Oxygen: Joseph Priestley.
Nitrogen: ______.

Analogy:

Respire through skin: ______
Respire through gills: Fish.