What is Matter
This is defined as anything that has mass and takes up space.
What is "matter"
This state of matter has both a definite, fixed shape and a definite volume.
What is a solid?
Particles in matter are never completely still; they are always doing this.
What is moving
Adding heat energy causes particles to move this way.
what is "faster"
This phase change happens when a solid is heated and becomes a liquid.
what is melting
This term describes the amount of space an object or substance takes up.
What is "volume"
This state of matter has a definite volume but takes the shape of whatever container it is poured into.
What is a liquid
In this state of matter, particles are tightly packed together and can only vibrate in place.
What is a solid?
When a liquid is cooled down and loses energy, its particles slow down and lock into a fixed position during this process.
what is "freezing"
This phase change occurs when liquid water cools and becomes solid ice.
What is freezing
This is the measurement of how much material or "stuff" makes up an object.
What is mass
This state of matter has no definite shape and no definite volume, expanding to completely fill its container.
What is a gas?
In this state of matter, particles are close together but have enough energy to slide and roll past one another.
What is a liquid?
This is the process where a liquid turns into a gas at its surface, even before it reaches its boiling point.
what is evaporation
When water is heated enough to become water vapour, this phase change occurs.
What is evaporation
According to the Particle Theory, all matter is made up of these incredibly tiny, unseen building blocks.
What are particles
Because there is so much empty space between their particles, this is the most easily compressed state of matter.
What is a gas?
When a material cools, its particles move closer together and the material takes up less space.
what is to contract /contraction
This happens to the overall size of a solid or liquid when it is heated because its particles move faster and push slightly further apart.
what is expansion
You see water droplets form on the outside of a cold glass. This phase change is happening as water vapour turns into liquid water.
what is condensation
Unlike mass, which stays the same anywhere in the universe, this property changes depending on the pull of gravity.
What is "weight"
This specific substance is unique on Earth because it easily exists naturally as a solid, a liquid, and a gas.
What is water
When building a deck in a cold climate, the footings are placed below this depth in the soil to prevent the ground from pushing the deck upward.
what is "frost line"
This rare phase change happens when a solid turns directly into a gas without melting into a liquid first, such as dry ice
what is sublimation
Dry ice changes directly from a solid into a gas without becoming a liquid first. What is this phase change called?
what is sublimation