Matter (p.42/43)
Everything that has mass and volume
matter
substances made up of a single type of matter
pure substances
A change in which the type of matter doesn't change
physical change
the ability of substances and objects to cause change
energy
Page 43: A property of gas where the volume reduces when put under pressure
compressibility
The three states of matter are:
solid, liquid, and gas
substances made up of two or more types of matter
mixtures
A change in which the type of material is changed
Chemical change
all the resources in nature that we use to get energy are called _____ __ _____
sources of energy
Page 43: Difficulty moving or flowing
viscosity
The general properties of matter are ____ and ____
mass, volume
a mixture in which we cannot see the components with the naked eye
homogenous mixture
Physical changes are the result of ____ and _____
heat, forces
Energies such as wind power, solar power, hydraulic power, and biomass are ____ energies
renewable
Page 44: Change of state from liquid to solid
solidification
A specific property of matter that relates the mass of an object to the volume it occupies
Density
mixtures in which we can see the components with the naked eye
heterogenous mixture
A change of state from solid to liquid is called ____
fusion
Energies such as coal, natural gas, nuclear power, and oil are _____ energies
Page 44: change of state from liquid to gas
evaporation
A property that depends on the density of the liquid and the density of the object placed in it
Buoyancy
two methods for separating the components of a mixture are: _____ and ______
evaporation, distillation, decantation, and filtration
A change of state from gas to liquid is called ____
condensation
________ _________ consists of maintaining our wellbeing, or reducing it slightly, in order to preserve the energy sources and the environment for future generations
Sustainable development
page 44: A chemical change that takes place with an absence of oxygen
Fermentation