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Showing posts with label SCIENCE´S CORNER. Show all posts
Showing posts with label SCIENCE´S CORNER. Show all posts

Tuesday, 9 May 2017





LOOKING THROUGH THE MICROSCOPE







These pictures correspond to onion cells. As you can see they are  Eukaryote cells. The plant cell, we can see the cell wall between the cells, and also nucleus. 

The first one was dyed with a purple color.
The second one has no color. 
I personally like the one with purple color, because It's more clear the image.


Adrián León. 1ºB











Friday, 28 April 2017

The Animal Cell



Materials :
-2balls of porexpan
-yellow and blue foam
-white and blue clay
-an egg of porexpan 
-a  black pen
-Blue paint

Instructions
1-First we cut and painted a quarter of the big ball. Then, we pasted some blue foam in the quarter we have previously cut.
2- For making the DNA and the nucleus, we used a second painted ball.
3- We have used red sponges for making the mitochondria and a green porexpan egg for the vacuole.
5- For  making the ribosomes we drew some dots  with a pen .

6- Finally we put some clay in the borders and labeled the different parts of the cell.


By Andrea and Ana

Tuesday, 25 April 2017

MAKING CELLS

                                            

THE PROKARYOTE CELL
Materials used for work
·         Cardboard
·         Colorful clay
·         Plastic cords of different colours
Performed process
First, and using the cardboard as a base, we have represented with white clay the "capsule", which is the outer part of the cell.
Then, with colored cords we have marked the lines that represent the cell wall and the membrane.
With red string and zig-zag shape, we have placed the DNA and finally with clay balls we have represented the ribosomes that are placed in the cytoplasm, just like the DNA.
Definition and function of the prokaryote cell
It is called prokaryotes to cells without a defined cell nucleus, that is, whose genetic material is dispersed in the cytoplasm, assembled in a zone called nucleoid.Being a unicellular and autonomous organism, it is capable of manufacturing the thousands of enzymes it needs for its metabolism. When it consists of a single cell, it must perform the basic functions of a cell and the functions of an organism.


                                  ALEJANDRO GARCÍA and IRENE GIL 1ºA


Friday, 24 February 2017

WE STUDY SOME PROPERTIES OF WATER




The water cycle.
First we filled a bowl with some hot water (that represents our seas and oceans) and put a cup in the middle of that bowl, to represent our land.Then we covered the bowl with some plastic paper,  that represents our atmosphere.As the water boiled, it evaporated. Then we put some ice over de plastic and the water vapour condensated.Ten minutes later, we removed the plastic and carefully took the cup from the middle of the bowl that contained some liquid water.
by David Lara    




SURFACE   TENSION

The Surface tension is a very important property of water because it allows to small and light insects to walk in the Surface of the water. This is consequence of the “layer “of atoms that became together when a force is pushing down them. As you can see in the photo we did it with a glass filled up of water and then we put a paper floating in the water and a clip floating in the paper, so when the paper sank the clip was still floating in the surface
                                                By Miguel Buitrago

CAPILLARITY


Capillarity is a very important property of water because it allows plants to do the photosynthesis. This property explains why water and mineral salts go up through the stem and reach the leaf. As you can see, we use some colours and papers to study it.
                         By Miguel Buitrago