Science Flashcards
What is an element made of
An element is made up of only one type of atom
What is a mixture made of
A mixture is made of more than one type of substance that has not reacted
What is a compound
A compound is made of more than one atom joined together
What is a molecule
A molecule is a small group of atoms bonded together
Is carbon dioxide a mixture or compound
It is a compound because it is made up of one carbon atom and 2 oxygen atoms
Define sublimation
Solid to gas
Define reverse sublimation/deposition
Gas to solid
What is solid to gas
Sublimation
What is gas to solid
Reverse sublimation/deposition
Another word for precipitation
Rain
Another word for collection
Accumulation
What is a solute
A solid you are trying to dissolve
What is a soluble
A substance that can be dissolved
What is a Solution
A solution is made when a solute is dissolved in a solvent
Solvent
Liquid you are trying to dissolve it into
Define physical change
A physical change is reversible change which can be separated back into its original substance. In physical change state changes only occur and no new substance are made
Chemical change
New substances are made by rearranging the atoms of existing substances by breaking old bonds to form new bonds
Signs of chemical change
Change of color, bubbling, gas forming, heat)
What is an independent variable
Change this to see what happens
Control variable
Factor we keep that same
Dependent variable
Measure this to write a conclusion
What is the process of the water cycle
Evaporation-condensation-precipitation-collections-runoff
Maori names for the water cycle
WaI maori, waI mate, papatuanuku, waI tai, waI ora
Is a change of state physical or chemical
A chang of state is physical change as it is reversible
What is matter
Tiny particles that make up the living world
Define intermolecular forces
Attraction between particles
Define state
Different ways particles can be rearranged (solid,liquid,gas)
Attraction between particles
The state of a substance depends on how strongly the particles are attracted to each other and how much energy they have
What happened when a substance gains or loses energy
As a substance gains or loses energy the substance can change star from solid to liquid to gas
Kino….
Ora,maori,kino,mate,tai,tapu
