woodchurch science

are we responsible for global warming on these planets or could it be something else? mars, jupiter, saturn, neptune, pluto…

isn’t pro-argin technology just more pseudoscientific mumbo jumbo to sell more toothpaste? or does it actually work? the pro-argin constituent contains arginine, an amino acid naturally found in saliva, and calcium carbonate, which are supposed to reduce sensitivity by blocking holes in the enamel in your teeth or in colgate’s words: ‘triggering an occlusion of the dentine tubules that remains intact even after exposure to acids, preventing transmission of pain producing stimuli’… read more here (colgate) or here (wikipedia).
If you really want to find out about tooth sensitivity read this: Brännström M. A hydrodynamic mechanism in the transmission of pain-produced stimuli through the dentine. In: Sensory Mechanisms in Dentine. Anderson DJ, ed. pp 73-79. Pergamon Press. London, 1963.

scientists have succeeded in turning ordinary cotton and polyester fabrics into batteries that retain their flexibility. this is a boost to the emerging field of “wearable electronics” in which devices are integrated into clothing and textiles. you can read more about them here.

for the new year the username and password have both changed…see your science teacher for the new versions….

Climate change organisation website. Good video on this about what they do. Useful for C1b 6.6 especially Triple science.
Click here for Tyndall Centre
Click here for info on John Tyndall

use this to compare atoms (and other things) to the size of a coffee bean or a grain of rice (slide the thing at the bottom).
http://learn.genetics.utah.edu/content/begin/cells/scale/

here’s one that actually works in school…(link)

try this to test your reactions…

bbc link, good animation, covers some stuff about tsunamis as well.

for every answer you get right on this site (www.freerice.com) you donate 10 grains of rice through the world food programme to starving nations. so get learning and get giving. you can change the subject (there’s a chemistry one for naming the element symbols) perfect for revising 8e.