September meeting:
Finish 3rd PI (goals for implmentation using HOTS)
Discussion on goals and last years FA's
Look at Best Practice page for some vocab and literacy strategies
Acid-base:A bit more on the chemistry side, but still fun nonetheless. Get some turmeric from the grocery store, mix it with rubbing alcohol to make a paste, and smear it on a pumpkin. If you pick a darker-colored pumpkin and put the paste in the crevices, it's almost invisible. Take a knife, dip it in a strong base such as ammonia, and touch it to the pumpkin paste. Turns out that turmeric is an acid-base indicator, and it turns blood-red in an alkaline situation. You can spin whatever story you'd like about it being a haunted pumpkin that bleeds when you try to carve it, or whatever floats your boat. In my experience, 9 out of 10 kids wants to know how you pulled off the trick, and the last one is shivering in the corner convinced the pumpkin is truly haunted. Hay LabIf you examine pond water without culturing it, you'll probably find the protozoa are somewhat difficult to find because they are not present at high density. To increase the protozoa density, make a hay infusion by putting the water in an open jar and adding cut dried grass or hay. The grass or hay should be green when it was cut and dried, and be free of herbicides and pesticides. You may also wish to add a few grains of yeast and a few drops of skim milk. The sugars in the dried grass or hay and the nutrition provided by the yeast and milk provide food for the bacteria in the water. If the jar is kept at room temperature for a few days the bacteria proliferate (and make quite a smell!). The bacteria are food for the protozoa, so the bacteria population boom will create a corresponding protozoan population boom. Be careful to not add too much hay, grass, yeast, or milk. This will overfeed the bacteria and they'll poison the water with their waste products before the protozoan population gets a chance to catch up.
Protozoa are oxygen breathers. Give them oxygen by using a pipette to bubbling air into the water at least once a day.
Taking samples with a pipette near the surface of the water, near floating debris, and near the bottom of the jar will often give you different types of microzoa to examine. The hay infusion population will peak about a week after making it. If you want to keep it going, get more fresh water from the original source, add hay, etc., and inoculate the new culture with several pipettes filled from the old culture.
Remember that the hay infusion has a very high bacteria count. While the vast majority of bacteria are not harmful to humans, there may be bacteria in the culture that could cause infection on contact. Be sure to wash with soap and water if the culture gets on your skin. Rinse out your eye with lots of clean water if any of the culture liquid contacts it. If you get any of the water in a cut be sure to wash it out and sterilize it with hydrogen peroxide or iodine.
08-09: High School Regents Last Day:
HSagendalastday.pub
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- 50 KB
Maryvale HS last day analysis.docx
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- 11 KB
Maryvale HS last day analysis.doc
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- 22 KB
Science Songs
Periodic Table
Cool Science
Science teaching and literacy links
Castle Learning
Accelerate U
September meeting:
Finish 3rd PI (goals for implmentation using HOTS)
Discussion on goals and last years FA's
Look at Best Practice page for some vocab and literacy strategies
NYS report card:
Science Recommendations:
Middle School:
Websites:
Interactive Matter
Astronomy
Educational Rap
Physical/Chemical Changes Activity
Line graph quiz
Hand Squeeze Graph
Seed Dispersal and Graphing
Day 5:
Day 4:
Acid-base:A bit more on the chemistry side, but still fun nonetheless. Get some turmeric from the grocery store, mix it with rubbing alcohol to make a paste, and smear it on a pumpkin. If you pick a darker-colored pumpkin and put the paste in the crevices, it's almost invisible. Take a knife, dip it in a strong base such as ammonia, and touch it to the pumpkin paste. Turns out that turmeric is an acid-base indicator, and it turns blood-red in an alkaline situation. You can spin whatever story you'd like about it being a haunted pumpkin that bleeds when you try to carve it, or whatever floats your boat. In my experience, 9 out of 10 kids wants to know how you pulled off the trick, and the last one is shivering in the corner convinced the pumpkin is truly haunted.
Hay Lab If you examine pond water without culturing it, you'll probably find the protozoa are somewhat difficult to find because they are not present at high density. To increase the protozoa density, make a hay infusion by putting the water in an open jar and adding cut dried grass or hay. The grass or hay should be green when it was cut and dried, and be free of herbicides and pesticides. You may also wish to add a few grains of yeast and a few drops of skim milk. The sugars in the dried grass or hay and the nutrition provided by the yeast and milk provide food for the bacteria in the water. If the jar is kept at room temperature for a few days the bacteria proliferate (and make quite a smell!). The bacteria are food for the protozoa, so the bacteria population boom will create a corresponding protozoan population boom.
Be careful to not add too much hay, grass, yeast, or milk. This will overfeed the bacteria and they'll poison the water with their waste products before the protozoan population gets a chance to catch up.
Protozoa are oxygen breathers. Give them oxygen by using a pipette to bubbling air into the water at least once a day.
Taking samples with a pipette near the surface of the water, near floating debris, and near the bottom of the jar will often give you different types of microzoa to examine. The hay infusion population will peak about a week after making it. If you want to keep it going, get more fresh water from the original source, add hay, etc., and inoculate the new culture with several pipettes filled from the old culture.
Remember that the hay infusion has a very high bacteria count. While the vast majority of bacteria are not harmful to humans, there may be bacteria in the culture that could cause infection on contact. Be sure to wash with soap and water if the culture gets on your skin. Rinse out your eye with lots of clean water if any of the culture liquid contacts it. If you get any of the water in a cut be sure to wash it out and sterilize it with hydrogen peroxide or iodine.
Day 3: Assessment Alignment:
Games
Lab:
Mitosis Land (with Graph)Standards and PIs
Archive tests
Shared documents from Chris Betrus..utilize his hard work:
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Elementary 3 and 4:
alignmentelem.doc
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- 33 KB
Elem_science.ppt
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- 98 KB
elecoresci.pdf
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- 177 KB
BLOOM (one page poster).doc
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- 106 KB
Action Plan..4th Grade State Assessment.doc
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- 28 KB