Class 6 Science - Chapter Electricity and Circuits NCERT Solutions | Complete the drawing shown in Fig 12.14

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

Would the bulb glow in the circuit shown in Fig. 12.15?

Using the "conduction tester" on an object it was found that the bulb begins to glow. Is that object a conductor or an insulator? Explain.

Would the bulb glow after completing the circuit shown in Fig. 12.14 if instead of safety pin we use an eraser?

Mark 'True' or 'False' for following statements:
(a) Electric current can flow through metals.
(b) Instead of metal wires, a jute string can be used to make a circuit.
(c) Electric current can pass through a sheet of thermo Col.

Why should an electrician use rubber gloves while repairing an electric switch at your home? Explain.

Fill in the blanks :
(a) A device that is used to break an electric circuit is called _______________.
(b) An electric cell has _______________ terminals.

The handles of the tools like screwdrivers and pliers used by electricians for repair work usually have plastic or rubber covers on them. Can you explain why?

What is the purpose of using an electric switch? Name some electrical gadgets that have switches built into them.

(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.

How is a compass used to find directions?

In which part of a flower, you are likely to find the ovary?

Some changes are listed in the following table. For each change, write in the blank column, whether the change can be reversed or not.

Lemonade is prepared by mixing lemon juice and sugar in water. You wish to add ice to cool it. Should you add ice to the lemonade before or after dissolving
sugar? In which case would it be possible to dissolve more sugar?

A bag of cement lying in the open gets wet due to rain during the night. The next day the sun shines brightly. Do you think the changes, which have occurred in the cement, could be reversed?

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

Fill up the blanks with the words given:
herbivore, plant, milk, sugarcane, carnivore

(a) Tiger is a ____________________ because it eats only meat.
(b) Deer eats only plant products and so, is called ______________.
(c) Parrot eats only _________________ products.
(d) The ________________ that we drink, which comes from cows, buffaloes and goats is an animal product.
(e) We get sugar from ___________________.

Match the objects given below with the materials from which they could be made. Remember, an object could be made from more than one material and a
given material could be used for making many objects.

Objects                Materials
Book                     Glass
Tumbler                Wood
Chair                     Paper
Toy                        Leather
Shoes                   Plastics

Give examples to explain the difference between changes that can or cannot be reversed.

Can you think of creating a shape that would give a circular shadow if held in one way and a rectangular shadow if held in another way?