SSLC (English Medium) Class 8 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

Define - Metabolism.

List out the different types of metabolism with an example.

What is crop rotation?

______ wire is used in the filament of the bulbs.

Copper wire offers very little ______ and does not get heated up quickly.

Fuse is a strip of alloy wire which is made up of lead and tin with a very low ______.

Match the following

Assertion: A current-carrying wire should be charged.
Reason: The current in a wire is due to the flow of free electrons in a definite direction.

Name the effect of the current responsible for the glow of the bulb in an electrical circuit.

Name a few appliances which work on the basis of the heating effect of current.

CO₂ is along with ______ in the manufacture of fertilizers like urea.

______ is used to prepare soft drinks or aerated drinks.

Write the steps that are followed to write down the chemical formula of a substance.

Derive the chemical formula for calcium chloride.

Each glucose molecule produces ______ ATP.

The lungs are covered by a membrane called ______.

Name the Indians worked at NASA.

Write the names of the following compounds.

1. CO
2. N₂O
3. NO₂
4. PCl₅

Effective microorganism preparation is not used in

The process of actively growing seedling from one place and planting in the main field for further growth is called ______.