CLASS 9TH SCIENCE CHAPTER 1 MATTER IN OUR SURROUNDING NOTES AND QUESTION BANK

CHAPTER – 1 “Matter in our Surroundings”

CONCEPT DETAILS

KEY CONCEPTS : [ *rating as per the significance of concept]

1. Particle nature of Matter ***
2. States of Matter ****
3. Interchange in states of Matter *****
4. Evaporation & Boiling ****
5. Kelvin , Celsius scale ***

Pre requisites
 Definition of matter.
 Elementary idea of three physical states of matter .



SURVEY ANALYSIS

Conceptual levels of comprehension on the basis of feedback taken from the students




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, 1. Particle Nature of Matter

[ refer NCERT text book activities 1.1 to 1.8 ]
 Anything that occupies space and has mass and is felt by senses is called matter.
 Matter is the form of five basic elements the Panch tatva – air , earth ,fire , sky and
water.
 Characteristics of particles of matter
 Made of tiny particles.
 Vacant spaces exist in particles.
 Particles are in continuous motion.
 Particles are held together by forces of attraction.
Q.1 Define matter.
Q.2 What happens if you put copper sulphate crystals in water?


2. States of Matter

[ refer NCERT text book activities 1.9 to 1.11 ]

Basis of Classification of Types
 Based upon particle arrangement
 Based upon energy of particles
 Based upon distance between particles
 Five states of matter


Gas

Liquid Plasma



Bose-
Solid Matter Einstein
condensate




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