Wednesday, October 28, 2009

Modular Combat Shotgun

symbols of chemical risk

The hazard symbols chemical are symbols that are printed on the labels of chemical products and that serve to inform immediately about the types of hazards associated with the use, handling, transporting and storage of foods.

clicking on the link below you will find a summary of the chemical hazard symbols with the symbol and name, meaning (definition and precautions) and examples of related chemicals:

http://it.wikipedia.org/wiki/Simboli_di_rischio_chimico

(these symbols can be saved as images)
Good job!

Watch Blue Film Online

Knowing the tools of a laboratory

What are they and what are the various laboratory equipment described in class? To clarify things click on the following links:

http://it.wikipedia.org/wiki/Pinza_ (chemistry)

http://it.wikipedia.org/wiki/Provetta

http : / / it.wikipedia.org / wiki / pipette

http://it.wikipedia.org/wiki/Beuta

http://it.wikipedia.org/wiki/Becher

http://it.wikipedia.org/wiki/Becco_di_Bunsen

http://it.wikipedia.org/wiki/Matraccio

http://it.wikipedia.org/wiki/Cilindro_graduato

http://it.wikipedia.org/wiki/Bilancia_ (instrument) # Balance

http://it.wikipedia.org/wiki/Termometro

Good job!

Wednesday, October 21, 2009

How Much Sand In A Railcar

The isometric transformations: the rotation

Class III E: Exercises on the rotation of plane figures to play at home for the day 10/22/2009