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

Analogy

Ice cube : 0^o C :: Boiling water :______

What is temperature?

What do you understand by thermal equilibrium?

Distinguish between heat and temperature.

When a window is accidentally left open on a winter night, will you feel uncomfortable because the cold is getting in, or because the heat is escaping from the room?

Suppose your normal body temperature were lower than what it is. How would the sensation of hot and cold change?

______ is the percentage of nitrogen in air.

The constituent of air that supports combustion is _____.

Nitrogen is used in the food packaging industry because it _____.

_______ and ______ are the two gases, which when taken together, make up about 99 percentage of air.

1. Nitrogen
2. carbon-di-oxide
3. Noble gases
4. Oxygen

______ is the active component of air.

______ gas is given to the patients having breathing problems.

_______ can be seen moving in a beam of sunlight in a dark room.

_____ gas turns lime water milky.

Inhaled air contains a large amount of carbon-di-oxide.

Whales come up to the water surface to breathe in oxygen.

The balance of oxygen in atmosphere is maintained through photosynthesis in animals and respiration in plants.

Match the following

Arrange the following statements in correct sequence

1. Plants manufacture food by a process called photosynthesis.
2. Plants require energy for their growth.
3. Plants take in oxygen and release carbon dioxide just as animals.
4. Plants take carbon dioxide from the atmosphere, use chlorophyll in the presence of sunlight and prepare food.
5. Such oxygen is available to animals and human beings for breathing.
6. During this process, oxygen is released by plants.

Analogy

Photosynthesis : _____ :: Respiration : Oxygen