Changes in Matter
Change in size
What is a physical change?
Odor and appearance are what type of property?
physical
Anything that has mass and takes up space
What is matter?
A state of matter that has definite shape and definite volume
What is a solid?
The energy an object has due to its motion
Kinetic Energy
When matter changes into an entirely different matter
What is a chemical change?
99% of all matter that can be observed in the universe exists in this state...
What is plasma?
The smallest chemical unit of an element
A state of matter that has definite volume
What is liquid?
Ability of matter to burn in the presence of oxygen
What is flammability?
Burning wood is an example of a _________ change
chemical
A material that is both malleable and conducts electricity.
What are metals?
A pure substance that CANNOT be broken down into simpler substances AND contains one type of atom
What is an element?
A state of matter that has neither a definite shape nor a definite volume
What is gas?
Ability of matter to combine chemically with other substances to form new substances
What is reactivity?
Melting an ice cube is an example of a _______change
Physical
Physical property of a liquid that resists flowing
What is viscosity?
A pure substance that contains two or more elements chemically joined in a fixed proportion
compound
Dry ice is an example of something that experiences...
sublimation
The smallest unit of a chemical compound, composed of two or more atoms bonded together
molecule
Name 1 of the 3 ways chemical changes can be observed.
change of color, production of a gas, formation of a solid (precipitate)
The ratio of a substance's mass to its volume
Mass/Volume
Density
A homogeneous mixture made by dissolving one substance in another
What is a solution?
Frost is an example of something that experiences...
deposition
Give an example of something with high viscosity.
maple syrup, honey, corn syrup