Category Archives: Science 8

Feb 20 Science 8 3 experiments; overcoming plant blindness; photosynthesis and human impact

Early parent conferences: 5-9 March before and after school. (Presenting at NSTA–type Frazier in keyword search under search events: http://www.nsta.org/conferences/schedule2.aspx?id=2018atl Complete the items in bold Be prepared for student-parent-teacher conference: Complete and up-to-date DSN. Carbon presentation–yours and others. Poster of van … Continue reading

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16 Feb. Science 8 Microscopic examination of plant parts and tissue; Select a tree friend; See leaf anatomy; Sign up for climate connections; Procedures for experiments next week

Procedures for experiments next week. Sunlight and starch production. Transpiration. Movement of water in stems. Will form new groups on Tuesday. Continue in your microscopic examination of plant material. Be sure to document your observations thoroughly in your DSN. Sketches, … Continue reading

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14 Feb. Science 8 Your questions; microscopic examination of plant parts, plant tissues, plant cells, stomata, chloroplasts, etc.

Your questions: A selection of those posed from your classmates–periods 5,6,8 Discuss and share your thoughts. Examination of plant material under the microscope. The purpose is to examine and contemplate the cellular organization of living things. Because green plants carry … Continue reading

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8 Feb. Science 8 Julius von Sachs; “the dilemma of detail” in understanding photosynthesis AND in understanding the history of the discovery of photosynthesis

Continuing with the history of the discovery of photosynthesis. https://www.youtube.com/watch?v=kKMNig0Cz04 We are trying to discover how the claim of photosynthesis was discovered and justified. 6 CO2+ 12 H2O–> light –>C6H12O6 + 6 O2 + 6 H2O What contributions to the claim came from … Continue reading

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6 Feb. Science 8 History of the discovery of photosynthesis continued

Notice: If anyone wants to help some local students with experiments and simple science activities, please let me know. This afternoon a group of students from Each One Teach One will be coming to M313 to do some chemistry activities. … Continue reading

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2 February Science 8 The History of the Discovery(ies) of Photosynthesis–Claims and Evidence

Recall the basic claim about photosynthesis: Green plants and phytoplankton are able to take carbon dioxide and water, and with the energy from light, initiate a complex set of chemical reactions that produce glucose, oxygen, and “new” water. 6 CO2+ … Continue reading

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31 January Science 8 (view eclipse from sunset on) Beginning Photosynthesis

Review DSN entry from previous class. http://rfrazier.msblogs.aes.ac.in/2018/01/28/29-january-science-8/ Read today’s blogpost. Prepare DSN entry for today’s class. Check out the lunar eclipse today (will have already started by moonrise / sunset). Take some pictures! Imagine where the earth, sun, and moon are … Continue reading

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29 January Science 8 Sugar, starch, molecules and the chemistry of life on earth–how it adds up; Your human impact project

Review previous DSN and blogposts. ( http://rfrazier.msblogs.aes.ac.in/2018/01/24/24-january-science-8-fermentation-of-sucrose-by-yeast/  ) and    (http://rfrazier.msblogs.aes.ac.in/2018/01/22/22-january-science-8-reflection-on-carbon-presentations-reading-about-fermentation-respiration-metabolism/ ) Read blogpost for today. Prepare your DSN for today’s entry. Examine fermentation experiment from previous class. Clean up bottle. Salivary amylase: Today we will try this simple “experiment.” You will … Continue reading

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24 January Science 8 Fermentation of sucrose by yeast

Review DSN entry from previous class. Review information about fermentation from previous class http://rfrazier.msblogs.aes.ac.in/2018/01/22/22-january-science-8-reflection-on-carbon-presentations-reading-about-fermentation-respiration-metabolism/ Prepare DSN entry for today’s class. We will set up yeast fermentation of sucrose in a warm water solution. Here is a very simple procedure: http://www2.mrc-lmb.cam.ac.uk/microscopes4schools/yeast.php Try … Continue reading

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22 January Science 8 Reflection on Carbon presentations; Reading about Fermentation, Respiration, Metabolism;

Review DSN entry from last class. http://rfrazier.msblogs.aes.ac.in/2018/01/18/18-january-science-8-presentations-on-carbon-and-carbon-cycle-respiration-fermentation-metabolism/ Read today’s blogpost. Prepare DSN entry for today. Be sure that this reflection is completed: *To what extent did our study of matter in Semester 1 prepare you for looking in more detail at … Continue reading

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