Particle Power
These tiny building blocks make up all matter around us.
What are particles?
This term describes matter changing from one state, like solid or liquid, into another.
What is a phase change?
On the Celsius scale, water freezes at this exact temperature
What is 0°C?
This process happens when a material cools down.
What is contraction?
Because ice is less dense than liquid water, it does this when placed in water.
What is floats?
In this state of matter, particles are tightly packed together and only vibrate in place.
What is a solid?
The phase change when a liquid turns into a gas.
What is evaporation?
This is what the Celsius scale is based on.
What is the melting and boiling point of water?
This process happens when a material is heated.
What is expansion?
When winter arrives, lakes freeze from this part first.
What is the top?
Adding this type of energy causes particles to move faster and spread farther apart.
What is heat?
The phase change when a gas turns directly into a solid.
What is deposition?
It is the reason we use Celsius in most countries today.
what is Practicality?
Unlike most substances, water does this unusual thing when it freezes into a solid.
What is expands?
The layer of ice on top of a frozen lake acts as an insulator, keeping the water underneath at this state.
What is liquid/heated?
As particles slow down, the intermolecular forces between them get stronger, pulling them closer together occurs when particles __________.
Cool down/Lose heat
During any phase change, this property of matter stays exactly the same if the matter is contained.
What is mass?
This fluid is now used in most thermometers today.
Dyed alcohol
It is the reason architects put joints in bridges and use heat resistant material in buildings.
What materials expand?
This is what the ice layer protects the lake against during winter.
What is cold air/heat escaping?
The strength of intermolecular forces when particles are moving fast and/or at a gas state.
What is Weak?
Name 3 phase changes that matter can undergo.
What are melting, freezing, evaporation, condensation, sublimation, and deposition?
When the fluid in a liquid thermometer gets warmer, the liquid moves this direction in the tube.
What is up?
Because ice expands as it freezes, its density becomes less than the density of this.
What is liquid water?
The shape water's particles make when they freeze.
What is a hexagon?