Materials Flashcards
Define Matter
Matter is anything that occupies space and has mass
Define Property
The word property means ‘how a substance appears or behaves’
Properties of a solid
Definite Shape
Definite Volume
Hard to compress
Do not flow
Properties of a liquid
No Definite Shape
Definite Volume
Hard to Compress
Flow Easily
Properties of Gases
No Definite Shape
No Definite Volume
Easy to Compress
Diffuse to fill all available space
What is Particle Theory
Scientists have explained a theory to explain the properties of solids,liquids and gases. The theory is called the Particle Theory
What is Diffusion?
Diffusion is the spreading out of materials due to the movement of their particles
Explain what happens to particles during Diffusion?
It only happens in liquids and gases
Happens quickest in gases because gas particles move the most
What is a change of state?
Change of state is when the particles go from a;
Solid-Liquid-Gas (heat)
Gas-Liquid-Solid (freezing)
What is the Melting Point
The melting point is the temperature at which solid changes to liquid
What is the boiling point?
The boiling point of a liquid is the temperature at which a liquid changes to a gas throughout the liquid
Why does diffusion happen faster at higher temperatures?
Higher temperatures increase the rate of diffusion because heat is added to the particles, causing them to move more
