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Sorting Materials into Groups | Chapter 4 | Class 6 | Science | NCERT

Exercise

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

Answer:

a) Table

b) Chair

c) Doors

d) Desk

e) Box

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

Glass bowl, plastic toy, steel spoon, cotton shirt

Answer: Glass bowl and steel spoon are the objects which shine.

Question 3. 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.

ObjectsMaterials
BookGlass
TumblerWood
ChairPaper
ToyLeather
ShoesPlastics

Answer:

ObjectsMaterials
BookPaper
TumblerGlass
ChairWood
ToyPlastics
ShoesLeather

Question 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 an 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 the water.

(viii) Vinegar dissolves in water.

Answer:

i) False

ii)False

iii) False

iv) True

v) False

vi) False

vii) True

viii) True

Question 5. 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) Eatables and non-eatables

Answer:

(a) Round shaped – Basketball, Orange, Globe, Apple, Earthen Pitcher

Other shapes – Water, Sugar

(b) Eatables – Water, Orange, Sugar, Apple

Non-eatables – Basketball, Globe, Earthen Pitcher

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

Answer:

A few items that float on water are as follows:

  1. Sponge’s piece
  2. Plastic bottle
  3. Paper’s piece
  4. Thermocol’s piece
  5. Wood
  6. Plastic ball
  7. Cork

However, these items will not float on oil or kerosene.

Question 7. 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

Answer:

a) Baby – others are made up of wood

b) Boat – others are flowers

c) Sand – others are metals

d) Sand – others are soluble in water

NCERT Class 6 Science

Chapter 1: Food: Where Does It Come From?

Chapter 2: Components of Food

Chapter 3: Fibre to Fabric

Chapter 4: Sorting Materials and Groups

Chapter 5: Separation of Substances

Chapter 6: Changes Around Us

Chapter 7: Getting to Know Plants

Chapter 8: Body Movement

Chapter 9: The Living Organisms and Their Surroundings

Chapter 10: Motion and Measurement of Distances

Chapter 11: Light, Shadows and Reflections

Chapter 12: Electricity and Circuits

Chapter 13: Fun with Magnets

Chapter 14: Water

Chapter 15: Air Around Us

Chapter 16: Garbage In, Garbage Out

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