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1 dzień temu · You will need to prepare a worksheet/questionnaire for your pupils (see Resource 2: Worksheet for the visit to the market). If you do not have the resources to make a worksheet, then in the previous lesson write some questions on the board and ask the pupils to copy them into their books – leaving spaces for the answers they will get at the ...
4 godz. temu · After invention of spectroheliographs and monochromatic filters, flares began to be observed much more often in Hα and some other chromospheric spectral lines.An Hα monochromatic image of a flare often shows two bright ribbons, the distance between which increases with time (Fig. 10.2).The area of emitting regions is from several millionths to several thousandths of the solar hemispheres.
