Sorting Materials into Groups Class 6 Worksheet Science Chapter 2

Q1: Multiple Choice Questions (MCQs)

(i) What are the three main states of matter?
(a) Solids, liquids, and gases.
(b) Solids, liquids, and powders.
(c) Metals, plastics, and ceramics.
(d) Wood, paper, and glass.
Ans: (a)
The three main states of matter are solids, liquids, and gases.

(ii) Which of the following is a good conductor of heat?
(a) Water
(b) Copper
(c) Plastic
(d) Wood
Ans: (b)
Copper is an example of a good conductor of heat.

(iii) What property determines whether an object will float or sink in water?
(a) Color
(b) Density
(c) Shape
(d) Hardness
Ans: (b)
Density is the property that determines whether an object will float or sink in water.

(iv) Which materials are good conductors of electricity?
(a) Plastics
(b) Glass
(c) Metals
(d) Wood
Ans: (c)
Most metals are good conductors of electricity.

(v) What is the primary reason for classifying materials based on their properties?
(a) To make materials harder
(b) To make materials softer
(c) To understand how materials behave and use them effectively
(d) To make materials transparent
Ans: (c)
Classifying materials based on their properties helps us understand their behaviors and select the right material for specific purposes.

Q2: Fill in the Blanks

(i) Materials through which light passes completely are called ____________.
Ans: transparent materials

(ii) When a material dissolves in a liquid, a ____________ is formed.
Ans: solution

(iii) Objects that are denser than water will ____________ in water.
Ans: sink

(iv) ____________ is used to shield things from heat.
Ans: Heat insulator

(v) Fine ceramics are used for making computer chips, heat-insulating devices, and components of spaceships due to their properties of being extremely ____________, melting at very high temperatures, and being poor conductors of electricity and heat.
Ans: hard

Q3: Match the Column (In a Table)

Match the terms on the left with their corresponding definitions on the right:

Ans:

Q4: True or False

(i) All metals are poor conductors of heat.
Ans: False
This statement is false. Most metals are good conductors of heat.

(ii) Glass is a transparent material.
Ans: True
This statement is true. Glass is a transparent material.

(iii) Solids have a definite shape and volume.
Ans: True
This statement is true. Solids have a definite shape and volume.

(iv) Wood is an excellent conductor of electricity.
Ans: False
This statement is false. Wood is a poor conductor of electricity.

(v) A heat insulator can be used to shield things from heat.
Ans: True
This statement is true. A heat insulator can be used to shield things from heat.