Key Terms
What is an atom?
The smallest part of an element
Which state of matter has a fixed shape and volume?
Solid
What is a phase change?
When substances change from one physical state to another
What is thermal energy?
Heat. How fast the particles are moving
What does it mean to expand something?
Add space
What is matter?
Anything that has mass and volume
What are the three states of matter?
Liquid, solid, gas
When we add energy to a liquid, what will happen?
It will phase change into a gas
What will particles do when we add energy to a solid?
Begin moving freely
What does it mean to compress something?
Remove energy
What is a molecule?
What shape does a liquid have?
Shape of the container
When we remove energy from a liquid, what will happen?
It will phase change into a solid
When we add energy to a gases particles, what will they do?
Move even faster
Why do molecules that have the same atoms, smell different?
Either different amounts of particles or different structures
What is mass?
The amount of stuff something is made up of
Give 4 examples of a gas
Misc
Double Points!
How do we make a solid phase change into a liquid?
Add Energy
What will a liquids particles do when we remove energy?
Slow down and eventually stop
What are the molecules that make up air? Which molecule is the most abundant?
Water, Carbon Dioxide, Nitrogen, Oxygen
Nitrogen
What is volume?
The amount of space something takes up
Which state of matter takes the shape and volume of the container?
Gases
How do we make a gas phase change into a liquid?
Remove energy
What will happen when we remove energy from a gas's particles?
The particles will slow down and gather into a liquid
Which state of matter is John Cena?
Gas
Double Points