Definitions
Define matter
What is:
anything that has weight and takes up space
define melting
What is state change from SOLID to LIQUID (with heat)
How are the particle packed in a solid???
Tightly packed
melting an ice cube is an example of a ________ change
What is PHYSICAL CHANGE
define a physical change and provide an example
matter changes FORM but not chemical identity
examples (melting ice, chopping wood, shredding paper)
define freezing
state change from liquid to a solid
How are the particles packed in a LIQUID?
What is particles are close together but flow around/over each other
cutting paper is an example of a ______ change
physical change
define a chemical change and provide an example
a chemical reaction occurs and new products are formed
example: burning wood
define evaporation
state change from liquid to gas (heat)
How are the particles packed in a GAS?
What is a particles spread apart and move freely in all directions
BURNING LEAVES IS AN EXAMPLE OF A _______ CHANGE
What is a CHEMICAL change
What are physical properties? Provide at least 1 example
observed /measured without changing matter
examples- shape, color, size, texture, boiling point, freezing point...
define sublimation
state change from solid to gas (directly)
define boiling
bubbling of a liquid as it changes to a gas
What state of matter takes the shape of its container and takes up a definite amount of space?
What is LIQUID
cooking an egg is an example of a _______change
What is a CHEMICAL change
What are chemical properties? Provide at least 1 example
observed during a chemical reaction.
examples- flammability, reactivity to water, toxicity
define deposition
Deposition - state change from gas to solid (directly)
define condensation
state change from gas to liquid (cooling)
What state of matter has no definite shape and takes up no definite amount of space?
What is a GAS
Combining Styrofoam is an example of a ______ change
CHEMICAL change