Classify the following into the correct states of matter: Oxygen, Pen, Coffee
gas, solid, liquid
This is a picture of 
compounds

Mixture can be separated with physical separation and pure substances can not.
Up and down on the periodic table is considered as ______________.
Left to right is considered as ____________.
group, period.
Ripping a piece of paper is a ____ change
physical change
how do the particles in a gas move ?
Far apart and randomly with high speeds.
A is an example of ___________.
B is an example of ___________.
a. Mixture of compounds and elements
b. Element
Coca-Cola is what kind of mixture?
homogeneous

atomic number
Matter goes through this when it changes the way it looks without becoming a new kind of matter.
physical change
My particles are closely packed and ordered in tightly together. What am I?
Solid
What is this picture of?
Mixture of compounds and elements.
True or false a substance that only has NaCl is a mixture.
False - it is a pure substance.
These are found on the right side of the periodic table
metalloids and non metals
This happens when we bake(put into the oven) cookie (which change)
chemical
gases are considered to have a ____ volume and ____ shape. (definite or indefinite)
indefinite
O2 is an example of a(n) ____________.
element
A mixture of iron and sulfur can be separated by _____________.
magnetism
Elements that have characteristics of metals and non metals
metalloid
Why is dissolving considered a physical change?
does not create something new - the salt is still there - it just disappears.
Why does soda spill over if you try to put a lid on a cup with it filled to the top? (think compressibility)
liquids do not compress very much
AlCl3 is an example of a ________.
compound
Name an example of 3 mixtures and 3 pure substances.
varied
Name of the second most reactive group of metals
Alkaline Earth Metals (group 2)
Dissolving sugar in milk is what kind of change?
physical