Secondary School (English Medium) (5 to 8) Class 6 - CBSE Question Bank Solutions for Science

Why do bulbs have two terminals?

Which of the following arrangement A, B, C and D given in the following figure should not be set up? Explain, why.

A fused bulb does not glow. Why?

Given below is a list of edible plants:

1. Banana
2. Pumpkin
3. Lady’s finger
4. Brinjal

Which pair of plants have two or more edible parts?

The part of a banana plant not used as food is ______.

Read the clues and fill up the blanks given below each of them.

Honeybees suck from flower.

N ___ ___ T ___ R

Why do boiled seeds fail to sprout?

Paheli and her friends were decorating the class bulletin board. She dropped the box of stainless steel pins by mistake. She tried to collect the pins using a magnet. She could not succeed. What could be the reason for this?

How will you test that ‘tea dust’ is not adulterated with iron powder?

Boojho dipped a bar magnet in a heap of iron filings and pulled it out. He found that iron filings got stuck to the magnet as shown in the following figure.

1. Which regions of the magnet have more iron filings sticking to it?
2. What are these regions called?

Which one of the following food item does not provide dietary fibre?

Beera is a farmer. His field has black soil and the climate is warm. Which fibre yielding plant should he grow in his field?

Some term related to fabric is jumbled up and given below. Write it in its correct form. 

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State whether the following statement is true or false. If false, correct it.

Silk is a plant fibre.

Once, Paheli visited a tailor shop and brought home some cuttings of fabric to study their properties. She took two pieces and found that one of the pieces were shrinking when it was burnt with a candle. However the  other did not shrink on burning. Can you help her to find out which of the two was a cotton fabric and which a silk fabric?

Fill in the blanks to complete the life story of cotton fibre.

My parents, cotton plants were grown in ______ soil and ______ climate. The plants bore fruits called ______. I, the cotton fibre was separated from seeds in the cotton bolls by the process of ______. Other cotton fibres and myself were made into yarn by the process of ______. The yarn was ______ to give beautiful colours and then ______ to get cotton fabric.

A cotton shirt, before it reaches you, completes a long journey. Elaborate this journey starting from cotton bolls.

You are provided with the following materials

1. Magnifying glass
2. Mirror
3. Stainless steel plate
4. Glass tumbler

Which of the above materials will you identify as transparent?

Which type of the following materials is used for making the front glass (wind screen) of a car?

Which among the following materials would you identify as soft materials and why?

Ice, rubber band, leaf, eraser, pencil, pearl, a piece of wooden board, cooked rice, pulses and fresh chapati.