Matter In Our Surroundings Flashcards
What are the three primary states of matter?
Solid, liquid, and gas.
True or False: Plasma is considered a state of matter.
True.
Fill in the blank: In a solid, particles are ______ together and vibrate in place.
packed.
What is the state of matter with a definite shape and volume?
Solid.
Which state of matter has a fixed volume but takes the shape of its container?
Liquid.
True or False: Gases have a definite shape and volume.
False.
What are the four states of matter commonly studied in class 9?
Solid, liquid, gas, and plasma.
What is the process called when a solid turns into a liquid?
Melting.
What state of matter is characterized by high energy and free-moving particles?
Gas.
Fill in the blank: The change from liquid to gas is known as ______.
evaporation.
Which state of matter can expand to fill its container?
Gas.
True or False: In liquids, particles are far apart and move freely.
False.
What is the term for the change of state from gas to liquid?
Condensation.
Fill in the blank: The process of a solid changing directly to a gas is called ______.
sublimation.
What happens to the particles in a solid when it is heated?
They gain energy and vibrate more.
True or False: All materials can exist in all states of matter.
False.
What is the process by which a gas becomes a solid called?
Deposition.
Fill in the blank: The temperature at which a liquid turns into a solid is called its ______.
freezing point.
What is the boiling point of water at standard atmospheric pressure?
100 degrees Celsius.
What occurs during the process of condensation?
Gas particles lose energy and form a liquid.
Fill in the blank: The state of matter that has no fixed shape or volume is ______.
gas.
True or False: A liquid has a definite volume but no definite shape.
True.
What is the main difference between a gas and a liquid?
Gas particles are further apart and move more freely than liquid particles.
