Class 6 Science - Chapter The Living Organisms and Their Surroundings NCERT Solutions | Fill up the blanks (a) The presence of

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

How are cactus adapted to survive in a desert?

List the common characteristics of the living things.

Explain, why speed is important for survival in the grasslands for animals that live there. (Hint: There are few trees or places for animals to hide in grasslands habitats.)

Give an example of a non-living thing, which shows any two characteristics of living things.

What is a habitat?

Which of the things in the following list are nonliving?
Plough, Mushroom, Sewing machine, Radio, Boat, Water hyacinth, Earthworm

(a) Which kind of garbage is not converted into compost by the redworms?
(b) Have you seen any other organism besides redworms, in your pit? If yes, try to find out their names. Draw pictures of these.

Rearrange the boxes given below to make a sentence that helps us understand opaque objects.

To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?

Do you find that all living beings need the same kind of food?

Name the major nutrients in our food.

Classify the following fibres as natural or synthetic:
nylon, wool, cotton, silk, polyester, jute

Name five objects which can be made from wood.

Why do we need to separate different components of a mixture? Give two examples.

Correct the following statements and rewrite them in your notebook.
(a) Stem absorbs water and minerals from the soil.
(b) Leaves hold the plant upright.
(c) Roots conduct water to the leaves.
(d) The number of petals and sepals in a flower is always equal.
(e) If the sepals of a flower are joined together, its petals are also joined together.
(f) If the petals of a flower are joined together, then the pistil is joined to the petal.

Fill in the blanks:
(a) Joints of the bones help in the ——————— of the body.
(b) A combination of bones and cartilages forms the _______ of the body.
(c) The bones at the elbow are joined by a ______________________ joint.
(d) The contraction of the _____________ pulls the bones during movement.

What is winnowing? Where is it used?

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

True or false?
(a) A mixture of milk and water can be separated by filtration.
(b) A mixture of powdered salt and sugar can be separated by the process of winnowing.                                                                                                                (c) Separation of sugar from tea can be done with filtration.
(d) Grain and husk can be separated with the process of decantation.

Explain why the bulb would not glow in the arrangement shown in Fig. 12.13.

Match the items in Column I with one or more items of Column II.

Column I                           Column II
Upper jaw                          have fins on the body
Fish                                    has an outer skeleton
Ribs                                   can fly in the air
Snail                                  is an immovable joint
Cockroach                         protect the heart
                                          shows very slow movement
                                          have a streamlined body

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

Is it possible to separate sugar mixed with wheat flour? If yes, how will you do it?

How will you separate sand and water from their mixture?

Name the major nutrients in our food.

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?