Name that State
What state of matter has a definite shape and definite volume?
What is a solid?
What is the change of state from a solid to a liquid?
What is melting?
What happens to particle speed when a substance is heated?
Particles move faster.
An ice cube melts on a counter. What change of state occurs.
Melting.
Does heating usually add energy to particles or remove energy from them?
Adds energy.
What state of matter has a definite volume but takes the shape of its container?
What is a liquid?
What is the change of state from a liquid to a solid?
What is freezing?
How do particles in a solid move?
They vibrate in place.
Water turns into ice in a freezer. What change occurs?
Freezing.
Does freezing generally require a substance to gain or lose thermal energy?
Lose thermal energy.
What state of matter spreads out to fill its entire container?
What is a gas?
What is the change of state from a liquid to a gas?
What is evaporation or vaporization?
Which state has particles that slide past one another?
A liquid.
Water droplets form on the outside of a cold glass. What change occurs?
Condensation.
What is the name for the change from gas directly to solid, such as frost/snow forming under suitable conditions?
Deposition.
What state of matter has particles packed closely together that vibrate in place?
What is a solid?
What is the change of state from a gas to a liquid?
What is condensation?
When a liquid freezes, what happens to its particles' motion?
They lose energy and move less freely.
A puddle disappears on a sunny day. What change of state is mainly responsible?
Evaporation.
Water boils and becomes water vapor. Describe what happens to its state and particle motion.
Liquid becomes gas; particles gas energy and move more freely.
What state of matter has particles that are far apart and move freely in all directions?
What is a gas?
What are the names of the changes from solid directly to gas and gas directly to solid?
What are sublimation and deposition?
Why can a gas fill an entire room while a solid cannot?
Gas particles move freely and spread out to fill available space.
Dry ice changes directly from a solid into a gas. What change occurs?
Sublimation.
Explain the changes of state and energy as ice is heated until it becomes liquid water and then water vapor.
The ice melts into liquid water, then vaporizes into gas as energy is added.