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I. Physical Science: (Chem: 01)A1. Chemistry: Laboratory Problem:

The States of Matter: Definition of Matter1. 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 ?

The soda bottle full.

2. Predict a Solution(s) (Hypothesis)

The soda bottle empty.

Marie and Pierre Curie

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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)

3. Test the Prediction (Experiment):

Record the weight of the soda bottle _____ grams.

EMPTY ?

FULL ?

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4. Record Results:

a. The bottle was full….of air !1. Air took up space in the bottle2. When the air was removed the bottle collapsed.

b. The air in the bottle had mass/weight1. The bottle weighed more before it collapsed.2. The bottle weighed less after it collapsed.

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6. Is air matter ?(Demo: balloon and digital balance)

7. Air is a mixture of gases.

9. What are the other forms of matter ?(Demo: ice and hotplate)

a. solids b. liquids

10. These three forms of matter are the States of Matter

8. Gases are one form or State of matter.

5. Matter is defined as any substance, which occupiesspace and has weight or mass.

c. gases

1.5 g

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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

b. Liquids - container may have one side open

c. Gases - require total containment

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14. In the Metric System the temperature of matter is measured in degrees ˚C.

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 calledCardinal Points.

d. Thermometers are calibrated and scaled onthese two points.

13. Temperature determines the state of matter for every substance.

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50---------40-----

-----40---------30

14. Read the following temperatures in ˚C.

-----20---------10

-----70---------60

-----10---------0

-----90---------80

20---------10-----

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15. Read the temperature in ˚C.

87.5o C