Vocabulary
Anything that has mass and takes up space
What is Matter?
A substance that has definite shape and definite volume.
What is a solid?
A reversible physical change when a substance changes from one state of matter to another.
What is a Phase Change?
Properties that are measured or observed when matter undergoes a change and becomes an entirely different kind of matter.
What is Chemical Properties?
Changes in the properties of a substance without changing the composition of the substance.
What is Physical Changes?
Two or more substances mixed together but not chemically bonded
What is Mixture?
The energy an object has due to its motion
What is Kinetic Energy?
These phase particles that are in constant, random motion
When the composition of a substance is changed, and new substances form.
What is Chemical Changes?
The ration of a substance's mass to its volume.
What is Density?
In sweet tea, sugar is this part of the solution
What is Physical Property?
These particles are always in motion but the attraction between the particles don't affect the movement of the particles.
What is a Liquid?
True or False: A change in volume is often a clue that a chemical change has occurred.
What is False?
Underwater plants and animals can survive because oxygen is dissolved in the water of rivers, lakes and oceans due to this physical change.
What is Solubility?
Define Diffusion
What is the natural movement within gases and liquids that spreads out particles from an area of higher concentration to an area of lower concentration?
A liquids resistance to flowing
What is Viscosity?
Occurs when a gas changes directly into a solid without first changing into a liquid.
What is Deposition?
Bubbles of this compound are created when Alka-Seltzer and Water are combined.
What is Carbon Dioxide?
Why cutting your hair is considered a physical change.
What is because you are not changing the composition of the hair?
A substance that goes directly from a solid state to a gaseous state without becoming a liquid first
What is Sublimation?
What is Solubility?
The factor that determines whether particle energy increases or decreases?
What is Temperature?
This chemical change results in the formation of a solid.
What is Precipitate?
True or False: The temperature of a substance does not change during a phase change.
What is True?