Matter
What is matter?
Matter is anything that has weight and takes up space.
What is the most important thing for changing state?
Temperature
How many states of matter are there?
Three
What is weight?
How heavy something is.
What is a particle?
The tiny building blocks that make up matter.
What are the three forms of matter?
Solid
liquid
gas
What is melting?
When solid is heated and changes its state to liquid.
Explain what solid is?
Solid is a matter that has a definite size and shape.
What is volume?
The amount of space taken up by something.
Explain and draw how the particles in a gas look.
Particles in gas do not touch each other.
Explain what diffusion is and give an example.
The movement of particles from an area of high concentration to low concentration. Ex. perfume
What is the name of the process if solid is changed to gas?
Sublimation
Explain what liquid is?
Liquid is a matter that has a definite size but no definite shape.
How does a substance expand? Give an example
Heat is applied and the particles spread out more and move faster. Ex. cooking rice
Explain and draw how particles in solid look.
They are arranged in regular rows with the particles touching each other.
Why can a syringe compress when it is empty, but cannot compress when there is liquid in it?
The particles in gas are spread out far from one another so the gas can be compressed making the particle distance closer to one another
If I want to change gas to liquid what should the temperature be and what is the process called?
The temperature should be cold and the process is called condensing.
Explain what gas is?
Gas is a matter that has no definite size or shape.
How does a substance contract? Give an example.
Heat is removed and the particles slow down and move around less causing the substance to contract. Ex. some metals, leaving a soccer ball outside in the cold
Explain and draw how particles in liquids look.
The particles in liquids are arranged with particles touching each other but not in a row.
Where can we find matter?
Everywhere or All around us.
Complete the following with the process it must use:
solid to liquid
gas to solid
liquid to gas
solid to liquid = melting
gas to solid= deposition
liquid to gas= boiling
List 4/6 of the state changes
Freezing, melting, condensation, evaporation, deposition, sublimation
True or false: particle size increases during expansion
False
Use the particle theory to explain why a solid cannot be compressed.
The particles in solids are held firmly in place by forces of attraction - they cannot move or change places