# NCERT Class 6 Science Chapter 4 Sorting Materials into Groups Solution

## NCERT Class 6 Science Chapter 4 Sorting Materials into Groups Exercise question Solution

### 1. Name five objects which can be made from wood.

Answer: Pencil, window, picture frame, toy, box, matchstick,

### 2. Select those objects from the following which shine:

Glass bowl, plastic toy, steel spoon, cotton shirt.

Answer: shiny objects are mostly made up of glass and metals. Here glass bowl and steel spoon show the shiny property.

### 4. State whether the statements given below are True or False.

(i) Stone is transparent, while glass is opaque.

(ii) A notebook has lustre while eraser does not.

(iii) Chalk dissolves in water.

(iv) A piece of wood floats on water.

(v) Sugar does not dissolve in water.

(vi) Oil mixes with water.

(vii) Sand settles down in water.

(viii) Vinegar dissolves in water.

Answer: (i)False, (ii) False (iii) False (iv)True (v)False (vi)False (viii)True

Stone is opaque, while glass is transparent.

A notebook is made of paper which has no lustre.

Eraser is obtained from a plant, so it has no lustre.

In the experiment of solubility, we find that chalk, oil, and sand is insoluble in water while vinegar, lemon juice is soluble.

Wood is lighter than water so floats in water.

### Group them as:

(a) Round shaped and other shapes

(b) Eatables and non-eatables

Round shaped: Basketball, Orange, Globe, Apple, Earthen Pitcher

Other shapes: Water, Sugar

(b)

Eatables: Water, Orange, Sugar, Apple

### 6. List all items known to you that float on water. Check and see if they will float on an oil or kerosene.

Plastic, wood and sponge do not float on kerosene, but thermocol floats on kerosene.

### 7. Find the odd one out from the following:

a) Chair, Bed, Table, Baby, Cupboard

b) Rose, Jasmine, Boat, Marigold, Lotus

c) Aluminium, Iron, Copper, Silver, Sand

d) Sugar, Salt, Sand, Copper sulphate

Here, in some way, all except one belong to one group.

a) All are made of wood except the baby.

b)All are flowers except the boat.

c )All are metals except sand.

d)All are soluble in water except sand.