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Revision Notes
Matter and Its Composition — Revision Notes
ICSE · Class 7 · Chemistry
Matter and Its Composition revision notes for ICSE Class 7 Chemistry: 4 topics in quick points. Part of the ICSE Class 7 Chemistry syllabus.
44 questions43 flashcards5 concepts
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Key Topics to Revise
1
What is Matter?
- Matter has three features: it has mass, occupies space, and can be perceived by senses.
- The quantity of matter a body contains is its mass.
- The space occupied by a body is its volume.
2
Composition of Matter
- Matter is made up of extremely small particles called atoms.
- Molecules are bigger than atoms, but both are too small to be seen with the naked eye or an ordinary microscope.
- Atoms usually do not have independent existence, so they combine to form molecules.
3
Particles of Matter
- Particles of matter have spaces between them called intermolecular or interparticular spaces.
- Sugar dissolves in water because sugar particles fit into the spaces between water molecules.
- A spoon dipped in water raises the water level because it occupies space.
4
States of Matter
- The three states of matter are solid, liquid and gas.
- If the force of attraction increases, molecules move closer and space decreases.
- If the force of attraction decreases, molecules move apart and space increases.
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Full NotesKey Concepts
Matter is anything that has massMass is the quantity of matterMatter is made of extremely smallA hydrogen molecule has two hydrogenParticles of matter have space between
Frequently Asked Questions
What are the important topics in Matter and Its Composition for ICSE Class 7 Chemistry?
Key topics in Matter and Its Composition include What is Matter?, Composition of Matter, Particles of Matter, States of Matter. Study these first, then practise questions on each for Class 7 exams.
How should I revise Matter and Its Composition for Class 7 exams?
Learn the core ideas first, then work through the 44 practice questions on Matter and Its Composition. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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