Chemistry: Convection and Conduction:

 Convection and Conduction

Convection and Conduction are passing on heat energy. 

when they have heat they have energy and they move faster ans faster and pass on energy.

Conduction: energy transfeing through contact

when the object is heated, the particles start moving faster and faster as they gain energy. these particles also try to spread out as the gaps between particles get bigger. 

If an object is heated from one end, the particles can transfer heat along, this is CONDUCTON.

2 examples of good conductors of heat:

- stove

-pans 

(some objects are good on heat these are called thermal conductor.) 

Objects which are bad at passing on heat are called thermal insulators. 

2 examples of good insulator of heat:

- red 

- jackets 

Convection: non contact energy transfer, usually in liquid

-Hot stuff rises, cold stuff sinks 

2 examples of good Convection of heat:

- hot air balloon

- soup in a pan 

teabag rockets: 

As we light the tea bags, the tea bags become hot there particles spread out and became less dense(light), as it became less dense it went up and when the particles went cold they became more dense(heavy) and compact and began to come down.