States of Matter
Which state of matter has a definite shape and volume?
Solid
Describe the particle arrangement in a solid
Tightly packed
Solid → Liquid
Melting
During melting, is heat added or removed?
Added
Melt
Which state has no definite shape but definite volume?
Liquid
Describe the particle arrangement in a gas
Far apart
Liquid → Solid
Freezing
During freezing, is heat added or removed?
Removed
Water turning to ice in a freezer is what change?
Freezing (also known as Solidifications)
Which state fills its container completely?
Gas
Which state has particles that slide around each other?
Liquid
Liquid → Gas
Evaporation
When heat is added, do particles move faster or slower?
Faster
Last night a puddle formed in my backyard after it rained. Today, the puddle has less water. What change is this?
Evaporation
Which state(s) of matter have a definite volume?
Solids & Liquids
What happens to particles when heat is added?
They spread apart and move faster
Gas → Liquid
Condensation
Condensation occurs when heat is added or removed?
I was drinking a glass of cold mountain dew on a hot and sunny day. I noticed that after a while, droplets of water began to form on the outside of my glass. What change of state is this?
Condensation
Which state of matter can be compressed (squeezed) the most?
Gas, because the particles are far apart.
What happens to particles when a solid changes straight to gas?
They separate extremely fast
Solid → Gas
Sublimation
Does sublimation require addition or removal of heat
Addition of heat
I was helping the Special Effects team on the set of the new Harry Potter TV series. To create a smoke effect, we added pieces of dry ice to hot water. The heat caused the dry ice to change directly from a solid into a thick, white fog.
What is this phase change called?
Sublimation