States of Matter Year 5 Notes

Bismillah.. =)

There are 3 basic states of matter : solid, liquid and gas..

SOLID

• A solid is anything that holds a particular size and shape. 
• An apple, a block of wood, and a penny are all solids.
• The only way they can change their shape is by force.
• The particles in a solid are tightly packed and don't make a lot of movements.
• There is not much free space in between the particles, so there is very little room for the particles to move.
• Solid have mass.

LIQUID

• A liquid is anything that has size or volume, but does not have a shape.
• Liquids must be contained in a cup, bottle or receptacle in order to have a shape.
• Milk, water and juice are liquids.
• Liquids particles are not so close together as particles of solid.
• They move around and past each other much more freely.
• They have no regular shape or arrangement and move freely.
• Liquid have mass.

GAS

• Gases are hard to identify because they have no colour or shape.
• It has no shape or size.
• Take a deep breath and feel your lungs get bigger, your lungs are filling up with air, and air is a combination of many gases.
• The particles in a gas move freely at high speeds.
• There is a lot of free space in between the particles, and they take shape of any container.
• Gases have mass.