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Chemistry
Class 7 - Atoms, Elements & Compounds
Elements are the building blocks of all matter. The Periodic Table of Elements show all the 118 elements that make up all matter on Earth. Each element is made up of its own special type of atom.
Class 7 - The Particle Theory
The Particle theory formed due to hypothesis supported by evidence. The Particle Theory states that: All matter is made up of tiny particles The particles are moving all the time There are forces of attraction holding the particles together These forces vary in strength in different states of matter.
Class 7: Acids and Bases
This chapter deals with the following subtopics:
Indicators
Neutralisation reactions
Neutralisation in daily life
Hazard Symbols
Class 7: Mixtures and their Separation
This chapter deals with the following subtopics:
Types of Mixtures
Filtration
Solutions & Solubility
Evaporation & Heating to dryness
Chromatography
Distillation
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