Secondary School (English Medium) (5 to 8) इयत्ता ६ - CBSE Question Bank Solutions

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

Have you seen any other organism besides redworms, in your pit? If yes, try to find out their names. Draw pictures of these.

Which of the following can never form a circular shadow?

Three torches A, B and C shown in the following figure are switched on one by one. The light from which of the torches will not form a shadow of the ball on the screen.

Correct the following statements.

1. The colour of the shadow of an object depends on its colour of the object.
2. Transparent objects allow light to pass through them partially.

On a sunny day, does a bird or an aeroplane flying high in the sky cast its shadow on the ground? Under what circumstances can we see their shadow on the ground?

A torch is placed at two different positions A and B, one by one, as shown in the following figure.

The shape of the shadow obtained in two positions is shown in the following figure.

Match the position of the torch and shape of the shadow of the ball.

Three identical towels of red, blue and green colour are hanging on a clothes line in the sun. What would be the colour of shadows of these towels?

A football match is being played at night in a stadium with flood lights ON. You can see the shadow of a football kept at the ground but cannot see its shadow when it is kicked high in the air. Explain.

A student had a ball, a screen and a torch in working condition. He tried to form a shadow of the ball on the screen by placing them at different positions. Sometimes the shadow was not obtained. Explain.

In the following arrangement shown in the following figure, the bulb will not glow if the ends A and B are connected with

Paheli is running short of connecting wires. To complete an electric circuit, she may use a ______.

In which of the following circuits A, B and C given in the following figure, the cell will be used up very rapidly?

Will the bulb glow in the circuit shown in the following figure? Explain.

Paheli connected two bulbs to a cell as shown in the following figure.

She found that filament of bulb B is broken. Will the bulb A glow in this circuit? Give reason.

Boojho has a cell and a single piece of connecting wire. Without cutting the wire in two, will he be able to make the bulb glow? Explain with the help of a circuit diagram.

Which of the following sources of protein is different from others?

A bar magnet is cut into two pieces A and B, from the middle, as shown in the following figure.

Will the two pieces act as individual magnets? Mark the poles of these two pieces. Suggest an activity to verify your answer.

What is not true about air?

Mountaineers carry oxygen cylinders with them because ______.