viernes, 19 de octubre de 2012


Take a look closely at this couple of videos.   They will explain and clarify some concepts related to osmosis and cell membrane.

lunes, 1 de octubre de 2012

Single-Celled Organisms

In this video you can learn about the world of microorganisms.
What they eat, how they move, what they have in common, and what distinguishes them from one another.

Watch the video carefully (you can stop it and replay several times).  Then copy and answer these cuestions in your notebook.
1.- All living thing are made up of what?
2.- When an organism is made up of just one cell, it's called ________________.  When there are more cells, it's called __________________.
3.- There are two basics tipes of cells.  Can you describe them?
4.- Write the name of three organisms which appear in the video.
5.- Which are the three main vital function of living things?