Matter notes (part 2)
Matter is anything that has _____________ and takes up _______________. If the matter has a
uniform composition, then it is a ____________________, or pure substance. This includes all
_______________, like iron, carbon, and oxygen, and ___________ of the elements, like salt, and water.
A mixture is a combination of ____________ or ______________ substances in which each retains their
individual chemical properties. The composition of a mixture is _______________ and there is no limit
to how many different mixtures can be made. Mixtures can be separated into the substances that make
them up by _________________ means. There are two types of mixtures - _______________________
and ____________________________.
Heterogeneous mixtures have an _______________ spreading of the substances, and the distinct parts
of the mixture are often easily distinguished. There are two types of heterogeneous mixtures ___________________ and _____________________.
Suspensions are heterogeneous mixtures in which the different parts can ____________upon standing.
Anything that tells you to _____________________ before using is a suspension, like orange juice with
pulp and Italian salad dressing.
Colloids are heterogeneous mixtures in which the different parts _________________ settle, like smoke
and fog. Colloids will scatter light, a property called the ________________________________.
Homogeneous mixtures have an ____________ spreading of the substances, making the parts of the
mixture somewhat difficult to distinguish, which is the idea behind “homogenizing” milk - making it the
same from the first glass to the last.
Homogeneous mixtures are often also called ______________. In general there are _____types of
solutions based on the phase of matter of the ______________ (thing being dissolved, or in lesser
amounts) and the _____________ (thing doing the dissolving, or in greater amount).
Mixtures must be separable by ___________________ means. This could be simple, like using a magnet
to pull iron out of sand, or using your _________________ to pull marshmallows out of Lucky Charms
Cereal, but often mixtures are harder than that to separate.
Previously it was shown how mixtures can be classified into two different types. The same is true about
_______________. Pure substances can be classified into two groups - ________________________
and_________________________.
Elements contain atoms that are all the ______________, and cannot be broken down by physical or
________________ means (it takes nuclear means). There are _____ naturally occurring elements, and
several more that have been made by scientists. The best way to check if a substance is an element is to
find it on the ___________________ of the ____________________.
The periodic table was first put together by Dmitri _______________ who arranged the elements by
common physical and chemical _________________. The pattern of properties repeats as you go
through the elements, which is why it is called __________________.