Phase changes
solid to liquid
Melting
A material's resistance to scratching is?
hardness
what type of change is cutting grass
physical change
what type of matter is a rock
solid
_____ is a sign that a chemical change has occurred
Color, odor, and release of heat, gas being created
liquid to solid
freezing
What are 2 examples of Chemical Properties?
Flammability, Toxicity, Ability to oxidize, rusting, rotting.
When a substance changes into one or more new substances it is called a ... change
Chemical
what type of matter is lemonade
liquid
A material that always has the same exact composition and properties
Pure substance
Liquid to gas
Evaporation
The mass per unit volume of a substance
Density
what type of change is a change in color
chemical change
The 3 states of matter
Solid ,Liquid and gas
what substance was replicated in the wack a toy expirament
NaTLCo3, citric acid, water
Gas to Liquid
Condensation
Malleability
A chemical reaction that releases energy is called?
Exothermic
Two examples of non-matter
Light, sound , electricity, movement
something has a density over 1 will it sink or float in aqua
sink
example of deposition
gas to solid
A material's ability to allow heat to flow
Conductivity
what is the substance produced by a chemical reaction
a product
kinetic theory
matter is made of atoms and molecules that act like tiny particles
These tiny particles are constantly in motion what is the temperature the faster the particles move
what is the density formula
density M/V