Mrs. Savage's Classroom: Meiosis Review!

Physical Science

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Next week we will be performing an Electrolysis Experiment.

The process by which we generate hydrogen (and oxygen) from water is called electrolysis. The word "lysis" means to dissolve or break apart, so the word "electrolysis" literally means to break something apart (in this case water) using electricity.

Electrolysis is very simple - all you have to do is arrange for electricity to pass through some water between to electrodes placed in the water. Its as simple as that! The principle of electrolysis was first formulated by Michael Faraday in 1820.

Biology~

Next week we will be learning about Kingdom Protista!

Protista

Some members of Kingdom Protista are unicellular, others are colonial, and yet others are multicellular. Note that in the colonial forms, all the cells are similar with similar, generalized functions, whereas in the truly multicellular species, the “body” of the organism consists of a variety of types of cells, each type with its own specialized function. These organisms are all eukaryotes (they have a true nucleus). They all need some kind of a water-based environment--which can be fresh or marine water, snow, damp soil, polar bear hairs--in which to live. All are aerobic and have mitochondria to do cellular respiration, and some have chloroplasts and can do photosynthesis. Most of them reproduce or grow by mitosis, and some reproduce by meiosis and fertilization. Many can form cysts in adverse conditions. Protists are a major component of plankton.

Tuesday's Classes

Physical Science

Michael Faraday

Physical Science Links

The Soluble Song

Atmospheric Pressure........ WOW!!!!

Periodic Table of Elements

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Thursday, February 25, 2010

Meiosis Review!

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Thursdays Classes

Astronomy

Exploring the surface of Mercury

Biology~

Protista

Kingdom Protista Video

Microscopic Life Close Up

Biology Links

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