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

Explain the characteristics of living organisms.

Deficiency diseases can be prevented by eating a balanced diet.

Which of the things in the following list are nonliving?

Plough, Mushroom, Sewing machine, Radio, Boat, Water hyacinth, Earthworm

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

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

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.)

Read the following statements about diseases.

1. They are caused by germs.
2. They are caused due to lack of nutrients in our diet.
3. They can be passed on to another person through contact.
4. They can be prevented by taking a balanced diet.

Which pair of statements best describe a deficiency disease?

Make a board-game just like ‘snakes and ladders’ with 10 × 10 grid boxes. 

The mouth of the snake will represent the faulty food habit or faulty method of cooking. Its tail will represent the deficiency disease caused or loss of any nutrient in food.

Similarly, the box at the base of a ladder will represent healthy food habit or healthy method of cooking. Its upper end will represent the beneficial effect of that habit. An example is given as figure. Complete the board and play with your friends.

Sheela, Saima and Ravi have to dissolve maximum amount of sugar in the same amount of milk so as to win in a game. Ravi took hot boiling milk while Saima took ice cold milk. Sheela managed to get milk at room temperature. Whom do you think would win the game and why?

State whether the following statement is true or false.

Water can be separated from salt by evaporation.

Paheli was feeling thirsty but there was only a pot of water at home which was muddy and unfit for drinking. How do you think Paheli would have made this water fit for drinking if the following materials were available to her.

Why is reproduction important for organisms?

Like many animals although a car also moves it is not considered as a living orgainism. Give 2-3 reasons.

______ is caused by deficiency of Vitamin D.

Deficiency of ______ causes a disease known as beri-beri.

Deficiency of Vitamin C causes a disease known as ______.

Night blindness is caused due to deficiency of ______ in our food.

Both Sarika and Mohan were asked to make salt solution. Sarika was given a teaspoonful of salt and half a glass of water, whereas Mohan was given twenty teaspoons full of salt and half a glass of water.

1. How would they make salt solutions?
2. Who would be able to prepare saturated solution?