Describing Matter
Everything that has mass and takes up space
Matter
Substances that are made up of only one atom.
An Element
A _____ is a combination of 2 or more substances together in the same place but their atoms are not chemically bonded and they can be separated.
Mixture.
What is the difference between Mass and Weight?
Weight: changes based on the pull of gravity
Mass: is the matter you are made up of and it does not change depending on where you are.
A _____ material is not mixed with any other matter.
Pure
In chemistry a single kind of matter that that is pure is called a _______
substance
the smallest unit of matter; made of protons, neutrons and electrons.
An Atom
Honey, air and soy sauce are examples of_________? and Why?
Homogenous Mixtures: cannot be separated easily
SI stands for what?
International System of Units
_____ tells you the relationship between 2 or more things.
Ratio
A characteristic that can be observed without changing the matter into another type of matter.
Physical property
A force of attraction between two or more atoms.
a chemical bond
What is a Heterogenous mixture
A mixture of atoms, molecules, ingredients etc. that can be easily separated from each other.
What is the definition of density?
A measure of the mass of a material in a given volume.
H2O, CO2, and C12H22O11 are all examples of
chemical formulas
A characteristic that describes the ability of something to change into something else.
chemical property
Substance made of two or more elements that are chemically combined in a set of ratio.
A compound
A bowl of mixed nuts its an example of
Heterogeous mixture
What is the formula for finding density.
Mass divided by volume
The tarnishing of metal is an example of a(n) ____________________ change.
chemical
Water and carbon dioxide in the leaves of a coconut palm tree are converted into oxygen and sugar.
Chemical Property
If a beach ball floats and a baseball sinks, which one has a higher density?
Baseball
Involves separating liquids by boiling them.
Distillation
Give examples of physical changes
tearing a paper, crushing a rock, cutting some veggies etc.
a characteristic that belongs to a person or thing.
properties