Matter and Its Composition — Question 12
Back to all questionsQuestion 11
Fill in the blanks:
(a) Air is a matter because it has ............... and ............... and it can be ............... .
(b) The molecules are made up of ............... .
(c) The quantity of matter in an object is called its ............... .
(d) The state of matter with definite volume and definite shape is called ............... .
(e) The substances which can flow are called ............... .
(a) mass, volume, compressed
(b) atoms
(c) mass
(d) solid
(e) fluids
Key Concepts Covered
This question tests your understanding of the following concepts from the chapter Matter and Its Composition: Question, Fill, Blanks, Air, Matter, Because. These are fundamental topics in Chemistry that students are expected to master as part of the ICSE Class 7 curriculum.
A thorough understanding of these concepts will help you answer similar questions confidently in your ICSE examinations. These topics are frequently tested in both objective and subjective sections of Chemistry papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.
How to Approach This Question
Read the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.
Key Points to Remember
- Balance chemical equations before solving numerical problems.
- Learn the periodic table trends and exceptions.
- Understand reaction mechanisms, not just outcomes.
- Use correct IUPAC nomenclature in your answers.
Practice more questions from Matter and Its Composition — Chemistry, Class 7 ICSE
ICSE Class VII Chemistry Chapter 1 15 Marks
Matter and Its Composition — Quick Study Guide
Everything around us is made of matter. Matter has mass and occupies space. It exists in three states: solid, liquid, and gas. Each state has unique properties based on how particles are arranged and move.
Key Definitions
- Matter: Anything that has mass and occupies space
- Solid: Fixed shape and volume, particles closely packed
- Liquid: Fixed volume but no fixed shape, particles slide over each other
- Gas: No fixed shape or volume, particles move freely
- Diffusion: Spreading of particles from high concentration to low concentration
- Sublimation: Direct change from solid to gas (e.g., camphor)
- Latent heat: Heat absorbed during change of state without temperature change
Important Comparisons
Evaporation vs Boiling: Evaporation is a surface phenomenon at all temperatures (slow, no bubbles). Boiling occurs throughout the liquid at a specific temperature (rapid, with bubbles).
Exam Tips
- Learn all six interconversion processes with examples
- Practice questions on predicting state at a given temperature
- Know factors affecting evaporation (4 factors)
- Understand why pressure cooker cooks faster
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