Wednesday, February 13, 2008
Wednes-Day 2
Bio- HW: due Friday, outline Section 36.1
we began our new unit: The Human Nervous System.
We compared and contrasted the two systems responsible for the life process of REGULATION (maintaining homeostasis): the nervous and endocrine systems.
We saw that the nervous system, via electrochemical IMPULSES between NEURONS, causes rapid bodily responses (pupil dilation, muscle contraction) in response to STIMULI (light, heat, moisture, threats). The endocrine, on the other hand, by secreting hormones, which are then circulated by the bloodstream to their specific target cells, causes slower, longer-lasting effects on the body.
We then looked at the structures and functions of nerve cells.
Chem 7/8- we began our new unit on the Math of Chemistry, specifically, the "mole" concept.
We began working with the "magic triangle", a tried and true method that most chemistry teachers have used successfully for decades.
To convert moles of a substance to its mass in grams, multiply the number of moles by the FORMULA MASS. We practiced calculating formula masses of atoms, molecules, and ionic compounds.
We then discussed our ester lab by showing the reactions involved, the structural formulas, and the names of the reactants and products.
Chem 9- we began our new unit on the Math of Chemistry, specifically, the "mole" concept.
We began working with the "magic triangle", a tried and true method that most chemistry teachers have used successfully for decades.
To convert moles of a substance to its mass in grams, multiply the number of moles by the FORMULA MASS. We practiced calculating formula masses of atoms, molecules, and ionic compounds.
we began our new unit: The Human Nervous System.
We compared and contrasted the two systems responsible for the life process of REGULATION (maintaining homeostasis): the nervous and endocrine systems.
We saw that the nervous system, via electrochemical IMPULSES between NEURONS, causes rapid bodily responses (pupil dilation, muscle contraction) in response to STIMULI (light, heat, moisture, threats). The endocrine, on the other hand, by secreting hormones, which are then circulated by the bloodstream to their specific target cells, causes slower, longer-lasting effects on the body.
We then looked at the structures and functions of nerve cells.
Chem 7/8- we began our new unit on the Math of Chemistry, specifically, the "mole" concept.
We began working with the "magic triangle", a tried and true method that most chemistry teachers have used successfully for decades.
To convert moles of a substance to its mass in grams, multiply the number of moles by the FORMULA MASS. We practiced calculating formula masses of atoms, molecules, and ionic compounds.
We then discussed our ester lab by showing the reactions involved, the structural formulas, and the names of the reactants and products.
Chem 9- we began our new unit on the Math of Chemistry, specifically, the "mole" concept.
We began working with the "magic triangle", a tried and true method that most chemistry teachers have used successfully for decades.
To convert moles of a substance to its mass in grams, multiply the number of moles by the FORMULA MASS. We practiced calculating formula masses of atoms, molecules, and ionic compounds.
# posted by C @ 12:01 PM 
