States of Matter
what are the 3 states of matter?
Solid, Liquid, Gas
What is melting?
Solid turns into a liquid from being heated
Solids particles are tightly packed. True or False
True
What is an atom?
Building Block of matter
smallest particle
provide 2 types of energy
thermal
kinetic
chemical
electric
sound
light
etc
Which one has definite shape and volume?
Solid
Does evaporation or boiling happen at a higher temp?
Boiling
very weak
What is a pure substance?
Made up of the same atoms
cannot be separated easily
what is an energy transformation
change of energy from one form to another
What is a liquid and give me 1 example?
has definite volume but able to change shape
examples: any liquid
What does increasing heat do?
Causes particles to gain more kinetic energy
moves further apart
According to the particle model what are particles always doing
Moving
What is 2 examples of homogenous mixtures?
Milk
Salt water
What is 2 examples of kinetic energy?
Any type of movement accepted
What is a gas?
Provide 2 examples
Has no definite shape or volume.
Examples: any gases
What are the 3 types of decreasing heat?
Freezing
Solidifying
Condensation
Why does liquid have fixed volume but can take up different shapes?
Weaker bonds allows movement
What is a heterogeneous mixture?
no dissolving occurs
In a match stick what does chemical energy transform into it
thermal and light