SSLC (English Medium) Class 6 - Tamil Nadu Board of Secondary Education Question Bank Solutions

The sun gives us light and heat.

We can absorb heat by rubbing two surfaces of some substances.

In the past, people used to rub two wooden pieces together to light fire.

Analogy:

Movement of molecules:: Heat.
Heat energy:: ______.

How can heat energy be generated?

When an electric current is passing through the conductor ______ energy is produced.

The changes in which new substance with new chemical properties are formed are ______.

The difference between initial state and the final state is called change.

Chemical change is a temporary change.

______ is the process in which something becomes different from what it was earlier.

Rusting of Iron: undesirable change:: Dead plants turn into manure: ______.

Silver articles turning black: ______:: Boiling of H₂O: physical change ______.

What is the change?

Cool and soothing wind: Breeze.
uproot trees wind: ______.

A group of organs that work together to perform a particular function is known as ______.

List the major organ system of our body.

Which is not attracted by a magnet?

______ plays a vital role in the evolution and survival of life.

Mountains helps to regulate the temperature of our earth.

Nitrogen is used for the treatment of drinking water.