Thursday, December 13, 2007
Thurs-Day 2
Bio- Reminder: test corrections (make SURE that you write out the full correction with explanation, drawing, equation) are due tomorrow. Advance HW notice, the outline to text section 34.2 will be due on Monday and the outline to section 34.3 will be due on TUESDAY (you may want to do both outlines over the weekend).
we discussed the life process of LOCOMOTION in both simple organisms (paramecium, amoeba) and complex organisms. Complex organisms use their musculo-skeletal systems to perform locomotion in order to:
1. seek food/nutrition/water/shelter
2. find a mate
3. evade/avoid predators or other dangers
We focused on the endoskeleton of humans which is made up of bones and cartilage.
We discussed five functions/purposes of bone e.g. support, protection, blood cell production, fat storage, and Calcium ion storage/reservoir.
We then looked at the various ranges of motion afforded by the different types of bone joints of the body.
We will look at various failures to maintain homeostasis when we see diseases of the skeletal system.
Chem 7/8- Reminder: the Periodic Table Unit homework packet is due next Tuesday, December 18. Our unit exam is on Thursday, December 20.
we explained the general trend in periodic properties of atomic size, electronegativity, and first ionization energy in terms of Zeff and OPEL's (a.k.a. the electron "shielding" effect). As you can see, ALL of these properties are based on the STRENGTH of the ATTRACTION between the valence electrons and their nucleus.
We then looked at the original Periodic Table as assembled by Mendeleev who used atomic mass as one of the criteria for ordering the elements. His other criterion was to group elements that behaved chemically similarly.
We then did a Periodic Table activity that placed elements based on their properties and atomic structures.
Download and study the explanations of the trends from today's notes and also look at the tutorial files.
Chem 9- Reminder: the Periodic Table Unit homework packet is due next Tuesday, December 18. Our unit exam is on Thursday, December 20.
we explained the general trend in periodic properties of atomic size, electronegativity, and first ionization energy in terms of Zeff and OPEL's (a.k.a. the electron "shielding" effect).
As you can see, ALL of these properties are based on the STRENGTH of the ATTRACTION between the valence electrons and their nucleus.
Download and study the explanations of the trends from today's notes and also look at the tutorial files.
we discussed the life process of LOCOMOTION in both simple organisms (paramecium, amoeba) and complex organisms. Complex organisms use their musculo-skeletal systems to perform locomotion in order to:
1. seek food/nutrition/water/shelter
2. find a mate
3. evade/avoid predators or other dangers
We focused on the endoskeleton of humans which is made up of bones and cartilage.
We discussed five functions/purposes of bone e.g. support, protection, blood cell production, fat storage, and Calcium ion storage/reservoir.
We then looked at the various ranges of motion afforded by the different types of bone joints of the body.
We will look at various failures to maintain homeostasis when we see diseases of the skeletal system.
Chem 7/8- Reminder: the Periodic Table Unit homework packet is due next Tuesday, December 18. Our unit exam is on Thursday, December 20.
we explained the general trend in periodic properties of atomic size, electronegativity, and first ionization energy in terms of Zeff and OPEL's (a.k.a. the electron "shielding" effect). As you can see, ALL of these properties are based on the STRENGTH of the ATTRACTION between the valence electrons and their nucleus.
We then looked at the original Periodic Table as assembled by Mendeleev who used atomic mass as one of the criteria for ordering the elements. His other criterion was to group elements that behaved chemically similarly.
We then did a Periodic Table activity that placed elements based on their properties and atomic structures.
Download and study the explanations of the trends from today's notes and also look at the tutorial files.
Chem 9- Reminder: the Periodic Table Unit homework packet is due next Tuesday, December 18. Our unit exam is on Thursday, December 20.
we explained the general trend in periodic properties of atomic size, electronegativity, and first ionization energy in terms of Zeff and OPEL's (a.k.a. the electron "shielding" effect).
As you can see, ALL of these properties are based on the STRENGTH of the ATTRACTION between the valence electrons and their nucleus.
Download and study the explanations of the trends from today's notes and also look at the tutorial files.
# posted by C @ 12:52 PM 
