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a single kind of matter that always has a specific makeup or composition
What is a substance?
anything that has mass and takes up space
What is matter?
a characteristic that can be observed without changing the matter
what is a physical property?
what is a chemical property?
this is the substance that is only made up of ONE kind of atom
what is an element?
a group of two or more atoms held together by a chemical bond
what is a molecule?
a substance made of two or more elements that are chemically combined in a set ratio.
what is a compound?
this type of property for water adn carbon dioxide in the leaves of the coconut palm tree are converted to oxygen and sugar thanks to the energy provided by the sun.
what is chemical property?
two or more substances that are mixed together but not bonded
what is a heterogeneous mixture?
this is the basic unit of all matter
what is an atom?
cake mix is this type of mixture
what is homogeneous mixture?
a bowl of mixed nuts is this type of mixture
what is heterogeneous?
this is the property that goes with this: oxygen is a substance that dissolves in water. fish absorb oxygen from the water. when dissolved oxygen levels are low it can be hard for organisms to survive
what is physical property?
separating liquids by boiling them is called this
4 methods you can use to separate mixtures
what are distillation, evaporation, filtration, and magnetic attraction
the ratio of atoms in a molecule of carbon dioxide
what is 1 carbon 2 oxygens
what is air/gas?
how easily a substance dissolves in another substance
what is solubility?
diamond and graphite are both made of this
what is carbon?
if iron is exposed to air and water , it can rust. this is what property
what is chemical property?
methane is highly flammable. when it combines with oxygen, it burns and produces carbon dioxide. this is what kind of property
what is a chemical property?
wood tends to be hard and relatively inflexible, especially when it's been dried. this is why wood is an excellent building material. what property is this?
What is physical property?
this is the point at which a liquid boils.
What is boiling point?
this is another word for homogeneous mixture
what is a solution?
gold is an excellent conductor. what does that mean
what is something that electricity moves through very easily?