viernes, 7 de febrero de 2014

TORRICELLI EXPERIMENT

Listen to the following video about the experiment of Torricelli and then fill the gaps in the text:




Torricelli Experiment

Torricelli performed his celebrated experiment on argento vivo (quicksilver) i.e mercury in ……………………. in Spring 1644.  Torricelli filled a glass tube open on one end with ……………………….  Then closing off the open end with a finger he tipped the ..…………. upside down and lowered it into another basin containing more mercury.  He observed that the column of mercury…………………………. only partially stopping at a height of about ………. cm.  Toricelli was convinced that the space created by the descent of the mercury in the tube was …………………, and that the force holding up the column consisted of the ………………… exerted by the……..  on the mercury in the basin.  In a letter to Michelangelo Ricci June the 11th 1644 Torricelli declared that his ………………………. proved 2 fundamental concepts; 1st that nature did not abhor the void 2nd that air had ………………..  The results of the mercury experiment opened a period of………………………….. change, forcing a re-examination of doctrine accepted for ………………………... 

lunes, 18 de noviembre de 2013

miércoles, 13 de noviembre de 2013

NEWTON´S LAWS OF MOTION



 
Answer the following questions with the information you will find in the  website: http://teachertech.rice.edu/Participants/louviere/Newton/





1. Enunciate Newton's first law of motion.
2. What is another name for the first law of motion?
3. Enunciate Newton's second law of motion.
4. What is the mathematical formula for Newton's second law?
5. Enunciate Newton's third law of motion.
6. Calculate the acceleration with which  we will move a toy car of 750 g, if we pull it with a force of 5 N.
7.  Give an example which explains Newton's third law,  and draw on it  the forces of action and reaction.
8. Do the quiz and check your answers.

viernes, 8 de noviembre de 2013

MAQUETAS DE CÉLULAS 2013

Aquí publico las fotos de las maquetas de células que han hecho los alumnos de 3º  de Diversificación. Son tres, la primera de una célula procariota, concretamente una bacteria, la segunda de una célula eucariota animal, y la última de una célula eucariota vegetal.
Los trabajos se han hecho en grupos y se han utilizado materiales reciclables y plastilina.

         Célula procariota. Realizada por Álvaro, Paquillo y Nicolás

           Célula eucariota animal. Realizada por Elena, Marta, Alba y Lauren.

            Célula eucariota vegetal. Realizada Mª José, Nerea y Miguel.

viernes, 20 de septiembre de 2013