Question 8

Match the following:

Materials / Objects

Property of material/object

Gold and silver

Opaque

Wax

Soluble in water

Air and glass

Floats on water

Cardboard

Metallic lustre

Sugar

Transparent

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Solution

Materials / Objects

Property of material/object

Gold and silver

Metallic lustre

Wax

Floats on water

Air and glass

Transparent

Cardboard

Opaque

Sugar

Soluble in water

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Similar questions

Q.
During summer holidays, a group of children collected a lump of salt, green grass, broken glass piece, a small thermocol box, pen, iron nail, glass marbles, hair, naphthalene ball, a piece of sugar candy (mishri) and tried to group them on the basis of properties given in table below. Help them in filling the Table.

Name of the material

Appearance (Hard/soft)

Transparency

(Transparent/Translucent/

Opaque)

Floats/ Sinks in water

Soluble/ Insoluble in water

Q. Name an object or material that has all the properties listed in each set given below.
(a) flammable, liquid, edible
(b) non-flammable, fragile, transparent
(c) lustrous, good conductor of electricity, non-magnetic
(d) elastic, opaque, inedible
(e) hard, floats on water, opaque, flammable

Q. State whether the statements given below are True or False.
(a) Stone is transparent, while glass is opaque.
(b) A notebook has lustre while eraser does not.
(c) Chalk dissolves in water.
(d) A piece of wood floats on water.
(e) Sugar does not dissolve in water.
(f) Oil mixes with water.
(g) Sand settles down in water.
(h) Vinegar dissolves in water.

Question 18

During summer holidays, a group of children collected a lump of salt, green grass, broken glass piece, a small thermocol box, pen, iron nail, glass marbles, hair, naphthalene ball, a piece of sugar candy (mishri) and tried to group them on the basis of properties given in table. Help them in filling the table.

$\begin{matrix} Name of the & Appearance & Transparency & Floats/Sinks & Soluble / Material & (Hard/Soft) & (Transparent / & in water & insoluble in Translucent/Opaque) & Water . . . . . . . . . . & . . . . . . . . . . & . . . . . . . . . . & . . . . . . . . . . & . . . . . . . . . . . . . . . . . . . . & . . . . . . . . . . & . . . . . . . . . . & . . . . . . . . . . & . . . . . . . . . . \end{matrix}$

Q. Write True (T) or False (F) against the following statements in the given brackets:
1. Tree is an opaque substance. ( )
2. All gases are insoluble in water. ( )
3. All things are made up of materials. ( )
4. Kerosene is soluble in water. ( )
5. A piece of wood floats on water. ( )

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Materials / Objects	Property of material/object
Gold and silver	Opaque
Wax	Soluble in water
Air and glass	Floats on water
Cardboard	Metallic lustre
Sugar	Transparent

Materials / Objects	Property of material/object
Gold and silver	Metallic lustre
Wax	Floats on water
Air and glass	Transparent
Cardboard	Opaque
Sugar	Soluble in water

Question 8 Match the following: Materials / Objects Property of material/object Gold and silver Opaque Wax Soluble in water Air and glass Floats on water Cardboard Metallic lustre Sugar Transparent

Materials / Objects Property of material/object Gold and silver Metallic lustre Wax Floats on water Air and glass Transparent Cardboard Opaque Sugar Soluble in water

Question 8

Match the following:

Materials / Objects

Property of material/object

Gold and silver

Opaque

Wax

Soluble in water

Air and glass

Floats on water

Cardboard

Metallic lustre

Sugar

Transparent

Materials / Objects

Property of material/object

Gold and silver

Metallic lustre

Wax

Floats on water

Air and glass

Transparent

Cardboard

Opaque

Sugar

Soluble in water