States of matter & changing state 🌷 Flashcards
What are the three primary states of matter?
Solid, liquid, gas.
True or False: In a solid, particles are arranged randomly.
False.
Fill in the blank: The process of a solid changing to a liquid is called __________.
melting.
What state of matter has a definite shape and volume?
Solid.
Which state of matter takes the shape of its container but has a definite volume?
Liquid.
True or False: Gases have a fixed volume.
False.
What is the process called when a liquid turns into a gas?
Evaporation.
What happens to the particles in a substance when it freezes?
They lose energy and move closer together.
Multiple Choice: Which of the following is NOT a state of matter? A) Plasma B) Ice C) Water D) Dust
D) Dust.
Fill in the blank: The process of a gas changing to a liquid is called __________.
condensation.
What state of matter has particles that are very far apart and move freely?
Gas.
True or False: Heating a substance generally increases the energy of its particles.
True.
What is the term for the temperature at which a solid becomes a liquid?
Melting point.
Fill in the blank: The reverse of melting is called __________.
freezing.
What is sublimation?
The process of a solid turning directly into a gas.
Multiple Choice: Which of the following transitions requires heat? A) Freezing B) Melting C) Condensation D) Solidification
B) Melting.
What is the process called when a gas turns into a solid without becoming a liquid first?
Deposition.
True or False: All materials can exist in all states of matter.
False.
What is the effect of pressure on the states of matter?
Increasing pressure can change gas into liquid or solid.
Fill in the blank: The temperature at which a liquid becomes a gas is called __________.
boiling point.
Short answer: Name a common example of sublimation.
Dry ice turning into carbon dioxide gas.
What is the primary difference between a liquid and a gas?
Liquids have a definite volume, while gases do not.
True or False: In a liquid, particles are tightly packed and cannot move.
False.
What happens to the energy of particles during condensation?
Energy is released.
Multiple Choice: What is the process called when ice turns to water? A) Freezing B) Melting C) Evaporation D) Condensation
B) Melting.
Fill in the blank: The change from liquid to solid is known as __________.
freezing.
