Wednesday, September 19, 2007
Wednes-Day 1
Bio- we looked at and discussed the various Tools of the Biologist. Here is a link to that powerpoint. We featured the simple, compound-light, stereo-dissecting, and electron (SEM and TEM) microscopes, indicators, and agar-based cell cultures.
We then began our "Scientific Investigation Contest", which involves constructing a valid scientific investigation and considering the possible results that could ensue/occur. We will continue with that tomorrow and the begin our unit test review.
Chem 7- we finished classifying the various type of homogeneous and heterogeneous matter. We discussed physical and chemical properties and noted the differences between them.
We then applied knowledge of the differences between the PHYSICAL properties of different substances in order to separate different substances that are mixed together.
We have only discussed filtration thus far, but there are three other techniques used to separate the components of a mixture based on differences in their chemical properties: distillation, chromatography, and crystallization.
Tomorrow, we will do a lab on the physical separation of a mixture and then we will discuss the remaining separation techniques. We will then finish the unit by practicing the representation of the various types AND phases of matter using simple "Dalton" atomic models.
There are some practice worksheets and solutions on the Blackboard site located under "Cicale's Assignments".
Also, to reinforce the class material, read your text sections 2.1 and 2.2.
I will post the answers to these section review questions later on or tomorrow morning.
Chem 8/9- we finished classifying the various type of homogeneous and heterogeneous matter. Here is a flow chart based on what we did today. We discussed physical and chemical properties and noted the differences between them.We then applied knowledge of the differences between the PHYSICAL properties of different substances in order to separate different substances that are mixed together. We have only discussed filtration thus far, but there are three other techniques used to separate the components of a mixture based on differences in their chemical properties: distillation, chromatography, and crystallization.
We began our "separation of a sand/salt mixture via filtration" lab and, though the lab cannot be completed in one day, we will have time to finish up and discuss data and calculations from EACH of our three labs on Friday. This way, you can polish your lab write-ups over the weekend and hand them in on Monday.
We will then finish the unit by practicing the representation of the various types AND phases of matter using simple "Dalton" atomic models.
Tomorrow, we will do a lab on the physical separation of a mixture and then we will discuss the remaining separation techniques. We will then finish the unit by practicing the representation of the various types AND phases of matter using simple "Dalton" atomic models.
There are some practice worksheets and solutions on the Blackboard site located under "Cicale's Assignments".
Also, to reinforce the class material, read your text sections 2.1 and 2.2.
I will post the answers to these section review questions later on or tomorrow morning.
We then began our "Scientific Investigation Contest", which involves constructing a valid scientific investigation and considering the possible results that could ensue/occur. We will continue with that tomorrow and the begin our unit test review.
Chem 7- we finished classifying the various type of homogeneous and heterogeneous matter. We discussed physical and chemical properties and noted the differences between them.
We then applied knowledge of the differences between the PHYSICAL properties of different substances in order to separate different substances that are mixed together.
We have only discussed filtration thus far, but there are three other techniques used to separate the components of a mixture based on differences in their chemical properties: distillation, chromatography, and crystallization.
Tomorrow, we will do a lab on the physical separation of a mixture and then we will discuss the remaining separation techniques. We will then finish the unit by practicing the representation of the various types AND phases of matter using simple "Dalton" atomic models.
There are some practice worksheets and solutions on the Blackboard site located under "Cicale's Assignments".
Also, to reinforce the class material, read your text sections 2.1 and 2.2.
I will post the answers to these section review questions later on or tomorrow morning.
Chem 8/9- we finished classifying the various type of homogeneous and heterogeneous matter. Here is a flow chart based on what we did today. We discussed physical and chemical properties and noted the differences between them.We then applied knowledge of the differences between the PHYSICAL properties of different substances in order to separate different substances that are mixed together. We have only discussed filtration thus far, but there are three other techniques used to separate the components of a mixture based on differences in their chemical properties: distillation, chromatography, and crystallization.
We began our "separation of a sand/salt mixture via filtration" lab and, though the lab cannot be completed in one day, we will have time to finish up and discuss data and calculations from EACH of our three labs on Friday. This way, you can polish your lab write-ups over the weekend and hand them in on Monday.
We will then finish the unit by practicing the representation of the various types AND phases of matter using simple "Dalton" atomic models.
Tomorrow, we will do a lab on the physical separation of a mixture and then we will discuss the remaining separation techniques. We will then finish the unit by practicing the representation of the various types AND phases of matter using simple "Dalton" atomic models.
There are some practice worksheets and solutions on the Blackboard site located under "Cicale's Assignments".
Also, to reinforce the class material, read your text sections 2.1 and 2.2.
I will post the answers to these section review questions later on or tomorrow morning.
# posted by C @ 11:45 AM 
