There are many substances around us. They all have their own properties which is how we recognise them. Physical properties : colour, strength, malleable or brittle, conductor or insulator, high or low density, high or low melting point Chemical properties: … Continue reading →
The kinetic theory states that all matter is made up of tiny particles that are constantly moving. Solid: The particles are held closely together in a regular pattern and can only just vibrate Liquid: The particles are still close together … Continue reading →
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