ChatterBank0 min ago
Microscopes
I need some interesting objects for my kids to look at through a microscope, we've done leaves, bits of a wasp, spiders web...
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Other classics from school days that I recall include: -
onion epithelium (the slippery skin between layers)
cheek cells (use lolly stick as a scraper) *
blood cells (know any diabetics?) *
* - these ones will not be as good as you might recall because they need special staining solution(s) to show up features like cell nuclei. As well as being substances too toxic to keep at home, the fact that schools and labs are the only real customers for the product means they'll be correspondingly too expensive for casual users.
There, that's all the boring suggestions out of the way. Now wait for better suggestions to come rolling in. :O)
onion epithelium (the slippery skin between layers)
cheek cells (use lolly stick as a scraper) *
blood cells (know any diabetics?) *
* - these ones will not be as good as you might recall because they need special staining solution(s) to show up features like cell nuclei. As well as being substances too toxic to keep at home, the fact that schools and labs are the only real customers for the product means they'll be correspondingly too expensive for casual users.
There, that's all the boring suggestions out of the way. Now wait for better suggestions to come rolling in. :O)
OK, ck1, 500X s enough to see blood cells, the way to make them easy to see is to place a drop of blood on end of a clean slide then use the end of another to drag the blood along the slide so that you get a very thin film of blood. Ths will dry quite quickly so can be easily handled for viewing. Be careful when using maximum power not to wind the objective lens through the slide. To avoid doing this carefully lower the oblective towards the slide whilst watching the clearance as it approaches near zero, then wind it slowly away whilst looking through the eyepiece for the moment of focus.
Check it here http:// microsc opeswor ld.com/