This section brings you to the meat of the topic. You are going to systematicallly study a few of the physical properties of matter. you will focus on the most common and easily studied properties. These include: mass. volume, density, boiling point, melting point and specific heat.
I have included several representative labs here. Feel free to use them. Be sure to look at the In More Depth section. Here you will find ideas about how to adapt these ideas to advanced classes.
The Mass experiment introduces the inertial balance. You may decide to elimminate this section. However the question I pose to my students is how do the austronauts on the space shuttle do massing.
Looking for a good one- any ideas email me.
Here are two density experiments. Each has its own peculiarities. I have successfully used both of these from physical science through chemistry to physics and advanced sciences. I use buckshot for the different sizes of steel shot; these can be obtained from local sporting good stores. I then assign a different size shot to a set of groups. The hope is that the student will see that density is dependent on the material not its size or shape.
For the boiling point experiment, I assist the student by having a coffeemaker with hot water available. The students will have to add some cold water to lower the temp below the liquid's boiling points but the time saved is worth the effort. I also use alcohol burners. The real danger here is that the student's water bath will be too hot and the sample will boil over and flash as the vapors hit the burner flames. So think safety- goggles and no loose hair or clothing.
For the melting point experiment, you will have to demonstrate how to properly prepare teh capillary tubes. The alternative is that you prepare all the samples for all the groups.
For the specific heat experiment, if you use styrofoam cups, be aware that styrofoam has a small thermal memory. To avoud problems in calculating the calorimeter constant, you can average all the individual groups' data or have two calorimeters available for each group.
I have heard that it is plagerism is when copy something and claim it as your own and research is when you copy something and give credit. So here are the credits for these labs.
I would especially like to give credit for several ideas to Herbert N. Alyea. His Armchair Chemistry ideas have proven invaluable. It is too bad that this text is now out of print.
MASS
Modern Physics Exercises and Experiments
Holt, Rinehart and Winston, Publishers. 1981
Boiling Point and Melting Point
Russo, Tom Microchemistry for High School General Chemistry Kemtec Educational Corporation 1985
Density
Smoot, Robert C., Richard G. Smith, Jack Price, Merrill Chemistry Glencoe/McGraw-Hill 1998
Specific Heat
Tzimopoulos, Nicholas D., H. Clarke Metcalfe, John E. Williams, Joseph F. Castka. Modern Chemistry Holt, Rinehart and Winston Inc. 1993
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