22NCBSE06CHE02EP002_Sorting of Materials into Groups.pdf

Sorting materials

1. Welcome to
Byju’s Home
Learning Program
Sorting of Materials
into Groups

2. Before the Exam
Avoid Procrastination Ask DoubtsManage Time Do Enough Practice
v
Take a Break Eat Properly Sleep Properly

3. During the Exam
Don’t Panic
Pay Attention to
Key Words
Solve Questions
Step by Step
Read all
Questions
Don’t Waste
Time on One
Question
Manage Time

4. Sorting of Materials
▪The arrangement of objects in a systematic manner based on their similarities
and differences
▪Provides an ease in handling objects
▪Makes it easy to studyand compare the properties of objects
Sorting
Take
Notes

5. Topics of Discussion
Sorting based on
use and shape
Sorting based on
appearanceand
transparency
Sorting based on
solubilityand
floatation
Sorting based on
materialand
hardness

6. Sorting based on
use and shape
Topics of Discussion

7. Sorting Based on Use
Clothes Toys Grocery Stationery
Take
Notes

8. Sorting Based on Shape
Triangular
RectangularSpherical
Cylindrical
Take
Notes

9. A. C.B.
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 shaped
(b)Eatables and non eatables
Q1

10. A. C.B.
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 shaped
(b)Eatables and non eatables

11. Sorting based on
material and
hardness
Topics of Discussion

12. Sorting Based on Material
▪Objects are made up of different types of materials like steel, plastic, wood, leather, metals,
and more.
▪They can be made up of single or more than one type of material.
Plastic WoodSteel Leather
Take
Notes

13. Some Materials Conduct Heat and Electricity
▪Conductivity is the ability of a material to allow heatand
electricityto pass through them.
▪Most metals allow heat and electricity to pass through them.
▪Glass, wood, and paperdo notconduct heat or electricity.
Metal wire Wood
Paper
Metal spatula
Take
Notes

14. Sorting Based on Hardness
Soft
Hard
Deform on applying pressure Do not deform on applying pressure
Sponge Toothpaste
Cotton
Stone Glass
Coin
Take
Notes

15. Handle with Care!
Chalk Glass tumbler Brick
Brittleness: The property of a substance to break down into smaller
pieces when pressure is applied on it
Take
Notes

16. Q2
Objects Materials
Book Glass
Tumbler Wood
Chair Paper
Toy Leather
Shoes Plastics
Match the given objects 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.

17. Name five objects which can be made from wood.
Q3

18. Chair
Table Box
Plank
Door
Name five objects which can be made from wood.

19. QUESTION
POLL

20. You are supposed to sort thematerials given to you into groups.
Which of the following can be in similar groups according to the
materials used for making them?
Pen, barbie doll,wooden chair, phone, and Iron nail
A Pen, barbie doll, and phone
B Pen,wooden chair, and Iron nail
C Iron nail, barbie doll, and phone
D Iron nail, barbie doll, and wooden chair
Q4

21. You are supposed to sort thematerials given to you into groups.
Which of the following can be in similar groups according to the
materials used for making them?
Pen, barbie doll, wooden chair, phone, and Iron nail
A Pen, barbie doll, and phone
B Pen,wooden chair, and Iron nail
C Iron nail, barbie doll, and phone
D Iron nail, barbie doll, and wooden chair

22. A. C.B.
DOUBT BOARD

23. Sorting based on
appearanceand
transparency
Topics of Discussion

24. Sorting Based on Appearance
Lustrous objects: Shiny appearance Non-lustrous objects: Dull appearance
Steel glass
Plastic straws Wooden box
Plastic Pen
Cardboard box
Aluminium foil Metallic Scale
Gold bangles
Lustreis the ability of a material to shine.
Take
Notes

25. Dull Outside, Shiny Inside
▪Metalslosetheirlustrewhen exposed to air and moisture for a long time.
▪Lustreis observed on rubbing and scrapping a dull metal surface with sandpaper.
Take
Notes

26. Sorting Based on Transparency
Transparent objects
Allow light to pass
throughthem
completely
Example: Clean glass
Translucent objects
Allowlight to
passthrough them
partially
Example: Stained glass,
glossy paper
Opaque objects
Allow no light to pass
through them
Example : Wood, steel
Take
Notes

27. A. C.B.
Select those objects from the following which shine:
Glass bowl, plastic toy, steel spoon, cotton shirt
Q5

28. A. C.B.
Non-lustrous objects:
Dull appearance
Lustrous objects:
Shiny appearance
Select those objects from the following which shine:
Glass bowl, plastic toy, steel spoon, cotton shirt

29. QUESTION
POLL

30. Identify the correct statement(s).
Q6
A Stone is transparent, while glass is opaque.
B A notebook has lustre, while eraser does not.
C Metal coins are hard, while sponge is soft.
D Butter paper is opaque, while glass is brittle.

31. A Stone is transparent, while glass is opaque.
B A notebook has lustre, while eraser does not.
C Metal coins are hard, while sponge is soft.
D Butter paper is opaque, while glass is brittle.
Identifythe correct statement(s).

32. Which of the following sets contains objects that are
allhard butnot lustrous ?
A Chalk, metal spatula, glass
B Stone, wooden board, brick
C
Glass, rubber toy, gold
bangles
D
Wooden board, diamond,
marbles
Q7

33. A Chalk, metal spatula, glass
B Stone, wooden board, brick
C
Glass, rubber toy, gold
bangles
D Wooden board, diamond,
marbles
Which of the following sets contains objects that are
allhard butnot lustrous ?

34. Sorting based on
solubilityand
floatation
Topics of Discussion

35. ` `` `
`
Sugar crystals
Vinegar
Carbon dioxide
PetrolKerosene
Sand
Water-soluble substances:
Dissolve completely in water
Water-insoluble substances:
Do notdissolve completely in water
Sorting Based on Solubility Take
Notes

36. Sorting Based on Floatation
•A substance having a density greater than that of water will sink in it,
for example, a piece of iron or aluminium.
•A substance which is less dense than water will float in it, for example,
wood or coins.
Objects lighter than water -float
Objects heavier than water -sink
Take
Notes

37. A. C.B.
State whether the statements given below are true or false.Q8
A Chalk dissolves in water.
B Sugar does not dissolve in water.
C Oil mixes with water.
D Sand settles down in water.
E Vinegar dissolves in water.

38. A. C.B.
DOUBT BOARD

39. Topics of Discussion
Sorting based on
solubilityand
floatation
Sorting based on
use and shape
Sorting based on
appearanceand
transparency
Sorting based on
materialand
hardness

40. A. C.B.
Q9
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

41. A. C.B.
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
a) Baby (all others are made from wood)
b) Boat (all others are soft)
c) Sand (all others are lustrous)
d) Sand (all others are soluble in water)

42. QUESTION
POLL

43. A
(i) floats; (ii) sinks; (iii) insoluble; (iv) soluble; (v) translucent; (vi)
transparent
B
C
(i) floats; (ii) sinks; (iii) insoluble; (iv) soluble; (v) transparent; (vi)
translucent
(i) floats; (ii) sinks; (iii) soluble; (iv) insoluble; (v) transparent; (vi)
transparent
D
(i) sinks; (ii) floats; (iii) soluble; (iv) insoluble; (v) transparent; (vi)
translucent
Q10
Complete the statement by selecting the appropriate option.
1.A cotton ball initially ___(i)___and then ___(ii)___as it absorbs
water.
2.Groundnut oil is ___(iii)___in water while sugar is ___(iv)___ in
milk.
3.Hand lens is ___(v)___whereas oiled paper is ___(vi)___.

44. Complete the statement by selecting the appropriate option.
1.A cotton ball initially ___(i)___and then ___(ii)___as it absorbs
water.
2.Groundnut oil is ___(iii)___in water while sugar is ___(iv)___ in
milk.
3.Hand lens is ___(v)___whereas oiled paper is ___(vi)___.
A
(i) floats; (ii) sinks; (iii) insoluble; (iv) soluble; (v) translucent; (vi)
transparent
B
C
(i) floats; (ii) sinks; (iii) insoluble; (iv) soluble; (v) transparent; (vi)
translucent
(i) floats; (ii) sinks; (iii) soluble; (iv) insoluble; (v) transparent; (vi)
transparent
D
(i) sinks; (ii) floats; (iii) soluble; (iv) insoluble; (v) transparent; (vi)
translucent

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48. A. C.B.
Which property of gold makes it the ideal choice
for makingornaments?
BA
Transparency Lustre
C
Floatation

49. A. C.B.
Which of the following properties is not important
in making a knife?
BA
Shape Lustre
C
Hardness
D
Colour

50. A. C.B.
Tick mark the correct properties possessed by each
of the following substances.
Soft
Opaque
Lustrous
Metal coins Plastic bowlSponge