Worksheet Solutions: Matter | Eureka Plus Class 5: Book Solutions, Notes & Worksheets PDF Download

Q1: Multiple Choice Questions (MCQs)

(i) What is mass?
(a) The space occupied by an object
(b) The amount of matter in an object
(c) The color of an object
(d) The temperature of an object
Ans: (b)
Mass is the measure of the amount of matter in an object.

(ii) Which of the following is an element?
(a) Water
(b) Oxygen
(c) Salt
(d) Sugar
Ans: (b)
Oxygen is an element, made up of only one type of atom.

(iii) In which state of matter are molecules tightly packed?
(a) Liquid
(b) Gas
(c) Solid
(d) None of the above
Ans: (c)
In a solid, molecules are closely arranged, giving it a definite shape.

(iv) What happens to a gas when it is cooled?
(a) It turns into a liquid
(b) It expands
(c) It solidifies
(d) It disappears
Ans: (a)
Cooling a gas makes its molecules come closer, turning it into a liquid.

(v) What is a physical change?
(a) Forms new substances
(b) Is mostly irreversible
(c) A temporary change without creating a new substance
(d) Involves a change in color
Ans: (c)
A physical change is temporary and does not create a new substance.

Q2: Fill in the Blanks

(i) Molecules of any substance are made of _________________.
Ans: atoms
Molecules are composed of atoms.

(ii) A substance whose molecules are made of only one kind of atom is called an _________________.
Ans: element
An element consists of only one type of atom.

(iii) In a solid, the force of attraction between the molecules is _________________.
Ans: very strong
In a solid, molecules are tightly packed due to a strong force of attraction.

(iv) The states of matter can be changed by heating and _________________.
Ans: cooling
Heating makes molecules move apart, and cooling makes them come closer.

(v) A chemical change forms one or more _________________ substances.
Ans: new
In a chemical change, new substances with different properties are formed.

Q3: True/False

(i) Only things we can see are made up of matter.
Ans: False
Everything, whether visible or not, is made up of matter.

(ii) Every element has a symbol.
Ans: True
Each element is represented by a symbol.

(iii) In a solid, the molecules are arranged far away from each other.
Ans: False
In a solid, molecules are tightly packed and arranged close to each other.

(iv) In a gas, the force of attraction between molecules is very weak.
Ans: True
Gases have very weak forces of attraction between molecules.

(v) A physical change forms new substances.
Ans: False
A physical change is temporary and does not form new substances.