What is Matter ?. Matter is…. Everything we see around us: Glass Metal Plastic Bones Breath. Matter can be sorted into three groups:. Solid - Like a brick Liquid - Like water gas - Like air. Gas. A solid doesn’t take the shape of a flask.
Everything we see around us:
Solid - Like a brick
Liquid - Like water
gas- Like air
So when you put a ball into a flask it doesn’t fill it up or take the shape of the flask - it just stays as a ball in the flask
So if we put the same liquid into different containers the liquid changes to be the same shape as the inside of the container but it doesn’t fill it right up
The same is true for air in a room – air will expand to completely fill a room, so we can breath everywhere. If it didn’t we would only be able to breath in certain places in the room where there was air, and we would have to hold our breath in other parts where there wasn’t any air.
For example if we heat a beaker of ice (solid) it turns into a beaker of water (liquid)
For example boiling Water turns into Steam
For example if it’s cold enough rain will turn into snow
Power stations release hot steam which is cooled by cooling towers and forms rain clouds which return the water back to earth when it rains
For example you can squash a balloon full of gas with your fingers and change it’s shape easily, but you cannot squash a solid ball easily.
For example we can stretch (and bend) a piece of rubber a lot and it comes back to it’s original shape
For example if we bend a twig too much it breaks, or if we bend a wire too much it stays bent - which is why we can make wire shapes like stars
Metal conducts heat very well but cork doesn’t - which is why the wax melts off of the end where it’s attached to the wire, but not off the end where it’s attached to the cork
Which is why we put hot drinks into polystyrene cups rather than glass beakers - to keep them warm and stop us burning our hands!
Which is why we make electrical circuits out of metal wire and not strips of wood or rubber bands!
So if we put cork in the circuit the bulb doesn’t light up. Another bad conductor is plastic which is why we coat electrical wires with plastic - to make them safe to handle!
For example chalk and steel can’t cut glass, but diamond can!