Another name for a chemical change is a _____________.
physical change
chemical reaction
chemistry
Mixing ingredients such as flour, water, sugar, and eggs is an example of a _______________ change.
physical
chemical
compound
An alloy mixture rust( alloy, mixture, rust ) formed from a mixture of at least one metal and another substance (Ex. iron and copper).
Burning a piece of wood is an example of a chemical change.
Knitting yarn into socks is an example of a chemical change.
The three states of matter are:
liquid, gas & ice
gas, solid and evaporation
liquid, solid & gas
The more energy (heat) the ❌ the particles move.
What are two processes that can change a liquid into a gas?
Evaporating and Distillation
Boiling and Melting
Evaporating and Boiling
What are two processes that are used to separate a salt water solution?
Distillation and Evaporation
Boiling and Distillation
_______ is the separation of a liquid from solid by changing the liquid into a gas and then condensing back into a liquid.
Distillation
Evaporation
Condensation
What is formed when a chemical reaction happens between iron and oxygen, forming a new substance?
Tarnish
Oxidation
Rust
Cutting, folding or cutting are all examples of physical changes.
Adding heat (energy) to a substance will case the particles to move slower.
A physical combination of two or more kinds of matter is a _________.
mixture
change of state
All chemical reactions either give off energy evaporation mixtures( energy, evaporation, mixtures ) or use energy mixtures particles( energy, mixtures, particles ).
A change of state does not affect an object's ______ because the particles are moving closer together or farther apart.
identity
temperature
When liquids are cooled (except water), its particles become farther apart.
Settling, filtration and magnets are all ways of separating a _________.
solution
A change in temperature can cause water to change from one state to another.
During the _______ process, a liquid becomes a gas and is not changed back into a liquid.
evaporation
distillation
boiling
❌ is a physical combination of two or more kinds of matter.
A solution chemical change filtration( solution, chemical change, filtration ) is a mixture in which two or more substances are blended completely.
Change of state Mixtures Chemical properties( Change of state, Mixtures, Chemical properties ) only change during chemical reactions.
An alloy iron oxide( alloy, iron, oxide ) is a solution in which at least one of the substances is a metal.
When differences in densities cause the parts of a mixture to separate.
settling
chemical change
Separates things by size
Filter
Separates a solid from a liquid
Settling
Filtration
A solution heated until the liquid becomes a gas and the solid is left behind.
filtration
Tarnish Iron( Tarnish, Iron ) forms when silver reacts with sulfur in the air.
A Chemical Change Physical Change Change of State( Chemical Change, Physical Change, Change of State ) begins with one kind of matter and ends with another.
Tarnish Rust( Tarnish, Rust ) is a solid, brown material that forms when iron gets wet and reacts with oxygen.
The change of a liquid to a gas without boiling is called _________.
melting
Rapid change of state from a liquid to a gas is called boiling evaporation change of state( boiling, evaporation, change of state ).
A change of state from a solid to a liquid is called melting evaporation( melting, evaporation ).
Change of State Chemical Change Physical Properties( Change of State, Chemical Change, Physical Properties ) is a physical change in which one state of matter turns into another.
Steam Boiling Evaporation( Steam, Boiling, Evaporation ) is water in the form of a gas.
___________ begins and ends with the same type of matter.
Change of State
Physical Change
Chemical Change
