What is Matter? | Common Misconceptions Corrected | Concept MCQs with Explanation Chemistry

 

Subject: Chemistry                                             Chapter 1                                              Grade 9

Topic: States of Matter

“What is Matter Really?”

Misconception:

“Only things we can see are matter. Air is nothing.”

Correct Understanding:

Matter includes anything that has mass and takes up space, even if we cannot see it.

Example:

Take a balloon:

• Blow it up → it expands

• Leave it open → it shrinks

“Why did the balloon expand if nothing went inside?”

 

• Air particles entered and pushed outward
• This proves gases occupy space and have mass

Example:

• Spray perfume in one corner
• Students smell it across the room

Particles are moving → gas is real matter

“If it can push, move, or be measured → it is matter.”

       

 

Multiple Choice (Concept + Misconception)

Q1. Which of the following is NOT matter?

A. Air                                                                        
B. Water
C. Light
D. Oxygen

Correct Answer: C (Light)

Explanation:
Students think air is “nothing,” but it has mass and occupies space. Light is energy, not matter.