Mr.Patterson

Matter
Objects that take up space and have mass
Mass
is a measure of the amount of matter in an object or material
Volume
The amount of space matter takes up
Solid
State of matter that has a definite shape and volume
Liquid
State of matter that has a definite volume but no definite shape
Gas
State of matter that has no definite shape and no definite volume
Mixture
Physical combination of two or more substances
Compound
Chemical combination of two or more substances
Conservation of mass
Whether there is a chemical change or a physical change the amount of mass always stays the same
Which states of matter have a definite volume
Both Liquid and Solid
What happens when energy is taken away from a liquid? what happens when energy is added to a solid?
When energy is taken away from a liquid it becomes a solid because the molecules are moving slower. When energy is added to a solid the molecules move faster therefore turning it in to a liquid
What is the difference between a chemical and physical change?
A chemical change mean the substance becomes a new substance and cant be changed back to the original substance (cookie batter to a baked cookie) A physical change is a change where the original substance can move back and fourth between the new form and old for (ice to water and water to ice)
What are some physical properties of matter that identify different substances?
Include but not limited to State, Size, Color, Smell, Volume, Mass, Density
Explain way burning a substance would be considered a CHEMICAL CHANGE
It is considered a CHEMICAL CHANGE because it brings about a new substance. Chemical bonds aer broken and new bonds are formed. For example WHEN WOOD BURNS THE ATOMS OF THE CARBON AND HYDROGEN IN THE WOOD JOIN WITH THE MOLECULES IN THE AIR AND A CHEMICAL FORMS CALLED CARBON DIOXIDE.
EXPLAIN HOW HETEROGENEOUS MIXTURES AND HOMOGENNOUS MIXTURES ARE ALIKE.EXPLAIN HOW THEY ARE DIFFERENT
BOTH MIXTURES ENTAIL THE COMBINATION OF TWO OR MORE SUBSTANCES. They KEEP THEIR ORIGINAL PROPERTY IF THEY ARE MIXED. They ARE DIFFERENT BECASUE HETEROGENIOUS MIXTURES HAS SUBSTANCES THAT ARE NOT EVENLY SPREAD AND HOMOGENEOUS HAS SUBSTANCES THAT ARE EVENLY SPREAD AND DISTRIBUTED
DO MOLECULES IN WATER VAPOR HAVE MORE OR LESS ENERGY THAN MOLECULES IN LIQUID WATER? EXPLAIN YOUR ANSWER.
Molecules IN WATER VAPOR HAVE MORE ENERGY BECASUE IT IS A GAS MEANING THAT THE MOLICULES ARE MOVING FASTER WHICH CREATES MORE ENERGY THEN IS FOUND IN LIQUID WATER
Explain why the melting point and freezing point of a substance is the same
The melting point and freezing point of a substance is the same because the melting point is when a solid matter of a substance turns in to a liquid at a certain temperature, the freezing point is when the liquid matter of the same substance turns in to a solid at the same temperature.
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