How do plants and animals help each othe | Class 6 Science Chapter Air Around Us, Air Around Us NCERT Solutions

Which gas in the atmosphere is essential for respiration?

List five activities that are possible due to the presence of air.

How will you show that air is dissolved in water?

The layer of air around the earth is known as ___________.

The component of air used by green plants to make their food, is ___________.

How will you prove that air supports burning?

What is the composition of air?

Why does a lump of cotton wool shrink in water?

Draw (a) a leaf, (b) a taproot and (c) a flower, you have studied for Table 7.3.

You are given an iron strip. How will you make it into a magnet?

Name two foods each rich in:
(a) Fats
(b) Starch
(c) Dietary fibre
(d) Protein

A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage on a fractured bone. It becomes hard on drying to keep the fractured bone immobilised. Can the change in POP be reversed?

Tick (√) the statements that are correct.
(a) By eating rice alone, we can fulfill nutritional requirement of our body. ( )
(b) Deficiency diseases can be prevented by eating a balanced diet. ( )
(c) Balanced diet for the body should contain a variety of food items. ( )
(d) Meat alone is sufficient to provide all nutrients to the body. ( )

List all items known to you that float on water. Check and see if they will float on an oil or kerosene.

Given below are the names of some objects and materials:
Water, basket ball, orange, sugar, globe, apple and earthen pitcher Group them as:
(a) Round shaped and other shapes
(b) Eatables and non eatables

Why can a pace or a footstep not be used as a standard unit of length?

Name the part of the plant which produces its food. Name this process.

Name two items that are made from coconut fibre.

Which of the non-living things listed below, were once part of a living thing?

Butter, Leather, Soil, Wool, Electric bulb, Cooking oil, Salt, Apple, Rubber

The height of a person is 1.65 m. Express it into cm and mm.

Complete the drawing shown in Fig 12.14 to indicate where the free ends of the two wires should be joined to make the bulb glow.

Suppose you want to dry your school uniform quickly. Would spreading it near an anghiti or heater help? If yes, how?

Fill up the blanks
(a) The presence of specific features, which enable a plant or an animal to live in a particular habitat, is called .
(b) The habitats of the plants and animals that live on land are called habitat.
(c) The habitats of plants and animals that live in water are called habitat.
(d) Soil, water and air are the ———— factors of a habitat.
(e) Changes in our surroundings that make us respond to them, are called .

The distance between Radha's home and her school is 3250 m. Express this distance into km.

How will you separate husk or dirt particles from a given sample of pulses before cooking.

Answer the following:
(a) What is a ball and socket joint?
(b) Which of the skull bones are movable?
(c) Why can our elbow not move backwards?

Given below are the names of some objects and materials:
Water, basket ball, orange, sugar, globe, apple and earthen pitcher Group them as:
(a) Round shaped and other shapes
(b) Eatables and non eatables

Fill in the blanks in the following
(i) Artificial magnets are made in different shapes such as __________, __________ and ____________.
(ii) The Materials which are attracted towards a magnet are called________.
(iii) Paper is not a ______ material.
(iv) In olden days, sailors used to find direction by suspending a piece of ___________.
(v) A magnet always has __________ poles.