Changes of State
This change of state happens when a solid becomes a liquid.
What is melting?
This is the temperature at which a solid becomes a liquid.
What is the Melting Point?
This type of Vaporization happens only at the surface of a liquid.
What is Evaporation?
What is Viscosity?
Honey pours slowly from a bottle, while water pours quickly. Honey has this type of viscosity.
What is High Viscosity?
This change of state happens when a gas becomes a liquid.
What is Vaporization?
This is the temperature at which a liquid becomes a solid.
What is the Freezing Point?
This type of Vaporization happens throughout a liquid and at its surface.
What is Evaporation?
This change of state happens when a gas becomes a liquid.
What is condensation?
True or False? The amount of a substance changes its freezing point.
FALSE! The amount does not change the freezing point.
These are the two types of vaporization.
What are boiling and evaporation?
This property is caused by the attraction between liquid particles.
What is Surface Tension?
Some insects are able to walk across the surface of water without sinking because of this property.
What is Surface Tension?
This change of state happens when a solid changes directly into a gas.
What is Sublimation?
An ice cube changes from a solid to a liquid. Name this process.
True or False? Evaporation can happen even when water is not boiling.
This property helps explain why some insects can walk on water.
What is Surface Tension?
A student heats a solid until it becomes a liquid. The temperature at which this change occurs is called this.
What is a Melting Point?
Boiling and evaporation are two types of this change of state.
What is Vaporization?
A student has a small amount and a large amount of the same substance. Will the amount change the substance's freezing point?
A glass of water is left on a table for several days. The water level slowly decreases even thought it never boiled or was poured out. What caused this?
What is Evaporation?
Explain why honey flows more slowly than water.
Honey has a higher viscosity than water, meaning it has a greater resistance to flowing.
Two containers hold different amounts of the same liquid. One container has more liquid than the other. Explain whether the amount of liquid changes the freezing point.
No, the amount of a substance does not change the freezing point.