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TOPIC: NON-LIVING THINGS
CONTENT: 1.  MATTER
Meaning of matter
Matter is anything in nature that has mass and occupies space. Stone, paper, plant, animal, air, water, rubber etc. are made up of matter. Matter is made up of small particles called atoms.
Water Droplets
Water droplets are made of water molecules that bond together.
Identification of matter
Matter is classified into solid, liquid, and gas. All living and non-living things are made up of matter. It means that everything that you can see, touch, smell, breathe or eat is made up of matter.
Matter can be classified as living and non-living matter. Can you mention some living and non-living matter around you?
STATES OF MATTER
The three states of matter are Solid, Liquid and Gas. Hence, we have solid state, liquid state and gaseous state.
Matter can be classified into the following group:
- Living and non-living things
- Using state of matter
- Using physical criteria like size, weight, texture, shape, color, smell, taste.
There are three states of matter which are solid, liquid and gas.
SOLID:
The particles of solid are arranged in an orderly manner. A strong intermolecular force holds the particles together. The particles are very much close together. Solids have definite shapes, volume and fixed mass. Examples of solid are salt, sugar, ice-block; stone etc. solid undergoes translational motion and oscillatory motion.
 LIQUID:
The particles of a liquid are not very close together. Liquid particles are a bit free to move about because of the moderate intermolecular force between particles. Liquid does not have a definite shape but takes the shape of the container. Liquid are fluid which flows or diffuse in all directions. Examples are water, blood, ink, urine. Liquid have definite volume, fixed mass. Liquid cannot be compressed or squeezed into a smaller space. Liquids undergo three kinds of motion, vibration, rotational and translational.
GAS:
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