1. Chemistry
Physical Science
S.E.M.A.C.
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2. I. Physical Science: (Chem:
A01)Chemistry: Laboratory Problem:
.1
The States of Matter: Definition of Matter
1. How do scientists study problems ?
a. The Scientific Method
(Demo: “spill”-2 liter bottle)
1. Identify the Problem
Is the soda bottle empty or full ?
2. Predict a Solution(s) (Hypothesis)
The soda bottle empty.
The soda bottle full.
Marie and Pierre Curie
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3. 3. Test the Prediction (Experiment):
Record the weight of the soda bottle
_____ grams.
a. if the bottle is empty, then nothing should come
out of it
b. if the bottle is full, then we should be able to empty it
(Demo: Vacuum Pump/Soda Bottle)
EMPTY ?
FULL ?
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4. 4. Record Results:
a. The bottle was full….of air !
1. Air took up space in the bottle
2. When the air was removed the bottle collapse
b. The air in the bottle had mass/weight
1. The bottle weighed more before it collapsed.
2. The bottle weighed less after it collapsed.
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5. 5. Matter is defined as any substance, which occupies
space and has weight or mass.
6. Is air matter ?
(Demo: balloon and digital balance)
7. Air is a mixture of gases.
8. Gases are one phase or State of matter.
9. What are the other forms of matter ?
(Demo: ice and hotplate)
a. solids b. liquids c.
gases
10. These three forms of matter are the States of Matter
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6. 11. Matter has three States (or phases):
a. solids b. liquids c.
gases
12. The States of Matter are defined by containment.
a. Solids - stand alone
1. definite shape
2. definite volume
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8. b. Liquids - container may have one side open
1. NO definite shape
2. definite volume
3. liquids take the
shape of their
container
c. Gases - require total containment
1. NO definite shape
2. NO definite volume
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9. 13. Temperature determines the state of matter for
every substance.
14. In the Metric System the temperature of matter is
measured in degrees ˚C. (Celsius / Centigrade)
a. 0˚ C = 32˚ F Freezing Point of Water
b. 100˚ C = 212˚ F Boiling Point of Water
c. The freezing and boiling points of water are called
Cardinal Points.
d. Thermometers are calibrated and scaled on
these two points.
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