What do you understand by the term 'Heating'?
When you raise the temperature of something
What do you understand by 'Cooling'?
When you lower the temperature
What are the 3 states of Matter, with examples?
Solid- Wood, Liquid - Milk, Gas - Air
What are the properties of a solid?
Rigid, Keeps its shape
What are the properties of a liquid?
Does not have a shape, takes the shape of a container. Can be poured easily
What are the properties of a gas?
No shape. Flows very easily. Fills the entire space it has
How can something change state? Eg- Water
When you heat it or cool it
Which direction can a liquid flow? And Gas?
Liquid--- Down or sideways, Gas - In all Directions
Can a solid flow? Eg - Lemon
No, it maintains its shape whereever you keep it
What is the change of state from Solid to Liquid called?
Melting
What is the change of state from liquid to solid called?
Freezing
What is the change of state from Water Vapour to water called?
Condensation
