Solution of Chapter 4. Sorting Materials into Groups (NCERT - Science Book)

Name any five objects which can be made from wood.

Select those objects from the following which shine:

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

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.

State whether the statements given below are True or False:

i. Stone is transparent, while glass is opaque.

ii. A notebook has luster while eraser does not.

iii. Chalk dissolves in water.

iv. A piece of wood floats in water.

v. Sugar does not dissolve in water.

vi. Oil mixes with water.

vii. Sand settles down in water.

viii. Vinegar dissolves in water.

Given below are the names of some objects and materials:

Water, basketball, orange, sugar, globe, apple and earthen pitcher. Group them as:

a. Round shaped and other shapes.

b. Eatable and non-eatables.

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

Find the odd one out from the following:

a. Chair, Bed, Table, Baby, Cupboard.

b. Rose, Jasmine, Boat, Marigold, Lotus.

c. Aluminum, Iron, Copper, Silver, Sand.

d. Sugar, Salt, Sand, Copper sulphate.