Matter
Build an Atom / Element / Ion
This is an interactive activity.
As we know, an atom is the smallest building block of everything that exists. It is composed of three sub-atomic particles: the proton, neutron, and electron.
1.1 ATOM – Significance of Sub-atomic Particles
What is an atom? What is the significance of sub-atomic particles- Proton, neutron and electron? Quiz – Build an Atom / Element / Ion As we know, an atom is the smallest building block of everything that exists. It is composed of three sub-atomic particles: the proton, neutron, and electron. Protons and neutrons make up …
Pure Substances – (A) Elements
[dropcap]W[/dropcap]When it is said that something is pure, it means that all the constituent particles of that substance are the same in their chemical nature. For ex. N2, O2, H2, Hg, sugar, common salt, water, iron, copper etc. Thus, a pure substance consists of a single type of particles. How can we identify a …
Nature of Matter (on the basis of their Chemical Properties)
Read First – Can Matter change its States? States of Matter What is Matter? What is its Characteristics? [dropcap]Matter[/dropcap] is everything around us which is made up of tiny particles. In the previous posts, we have learnt classification of matter into solid, liquid and gas, on the basis of their physical properties. In the following post, …
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Condensation (Gas changes into Liquid )
Read First – What is Matter? What is its Characteristics? States of Matter Can Matter change its State? Evaporation (Liquid changes into Gas) [dropcap]Why[/dropcap] do we see water droplets on the outer surface of a glass containing icecold water? do we find dew drops, especially in the early morning on the leaves? The water vapor …
Evaporation (Liquid changes into Gas)
Read First – Can Matter change its States? States of Matter What is Matter? What is its Characteristics? [dropcap]I[/dropcap]In liquids, there are always a few particles with a lot of energy and some with very low energy. A small fraction of particles at the surface, having higher kinetic energy, is able to break away from …
Can Matter change its State?
Read First – What is Matter? What is its Characteristics? States of Matter [dropcap]W[/dropcap]e know, water exists in all three states – • Solid as ice • Liquid as water • Gas as water vapor. Now questions arise – (1) How do changes from one state to other state take place? (2) What happens to …
States of Matter
Read First – What is Matter? What is its Characteristics? Matter around us exists mainly in three states – solid, liquid gas This can be understood with the help of three forms of water – ice, water and water vapor . Activity – Take a big piece of ice in a beaker at room temperature. …
What is Matter? What are the Characteristics of Matter?
Matter is everything around you which is made up of particles. It has mass and occupies space. Mass is a physical quantity which expresses the amount of stuff in an object. The space inside the container that is occupied by matter is its volume. Early Indian philosophers classified matter in the form of five basic elements – the …
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Change of States of Matter – [B] Effect of change of Pressure
Read First – Can Matter change its States? States of Matter What is Matter? What is its Characteristics? [B] Effect of change of Pressure – Liquified petroleum gas . By increasing pressure, particles of matter can be brought close together. When we apply pressure on a gas enclosed in a cylinder, it starts compressing and converts …
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Can Matter change its State?
We know, water exists in all three states – • Solid as ice • Liquid as water • Gas as water vapour. Now questions arise – (1) How do changes from one state to other state take place? (2) What happens to the particles of matter during the change of states? (3) What happens inside …
Change in States of Matter – [A] Effect of change of Temperature
First you read – Can Matter change its States? States of Matter What is Matter? What is its Characteristics? Matter does not always remain in the same state. It can be made to change its state either by changing in temperature or pressure. [A] Effect of change of Temperature – (a) Take some ice cubes …
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