Experiment amb pa de motlle

Fa uns quants dies els nens i nenes de la classe de les Llunes vam iniciar un experiment, consistia en tocar una llesca de pa de motlle amb les mans brutes (tal com les tenim a l’entrar del pati) i una altra amb les mans ben netes. Tot i fer exactament el mateix a les dues classes, vam obtenir resultats ben diferents.

Després d’investigar què havia passat, vam arribar a la conclusió que el pa que vam fer servir a les dues aules era diferent, un 100% natural i l’altre, un pa de motlle normal com el que trobem als supermercats. En el pa 100% natural els bacteris i microbis que portem a les mans quan les tenim brutes van provocar que en aquest es florís, mentre que el pa amb conservants, va quedar intacte.

La veritat és que ens ha sorprès molt el resultat de l’experiment i una cosa ens ha quedat molt la clara, la importància contrastada de rentar-nos les mans abans de cada àpat.

ZOOPLANKTON PROJECT: Hatching Brine Shrimp Eggs

At the beginning of November we prepared a sea salt solution and we put two table spoons of brine shrimp cysts into it. Brine shrimps are also called artemias or sea monkeys.
The eggs hatched around 3 days later. Constant aeration was also needed. We will keep you updated about our babies!

SURFACE TENSION: MAKING PAPER CLIP FLOAT

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We put a paper clip on the edge of another paper clip and lowered it gently into a bowl of water. It didn’t sink because surface tension held it afloat. That’s why so many insects are able to walk on water.

How cool!

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ZOOPLANKTON PROJECT:Hatching Brine Shrimp Eggs

This week we’ve prepared a salt solution and we’ve put two table spoons of brine shrimp cysts into it.
Brine shrimps are also called artemias or sea monkeys.

The eggs should hatch in 48-72 hours. Constant aeration is also needed.
We will keep you updated about our babies!

HAVING FUN OBSERVING ZOOPLANKTON!

In Science we are learning that plankton can be plant-like organisms, called phytoplankton, or animal-like, called zooplankton.

Our zooplankton is quite large and we are able to observe it without magnifying glasses.

Have a look at the pictures! We are observing artemias here!

WATCHING ANAGLYPH IMAGES WITH 3D Glasses

In our Science class we have been watching anaglyph images!
We have used special red/cyan 3D glasses in order to observe different planets of our solarsystem, images of the moon and many others.
We even have watched some 3D videoclips and have taken a ride on a virtual reality roller coaster. Have a look, we have had so much fun!

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The secret life of zooplankton

In Science K5 we have been learning that inside a drop of water that you might collect from the sea are very tiny organisms. These tiny and often not so small living things are called zooplankton and phytoplankton.
We have living zooplankton in our Science Lab in preschool: mysid crustaceans, artemia (brine shrimps) rotifers and copepods.
We also have been listening to the story: Felipe the Flamingo, that isn’t pink because he does not eat artemia.
Flamingos get their pink colour from their food, the artemia.
One of these days we are going to observe our zooplankton under the microscope!
We are so thrilled!

 

 

PLAYING POLAR BEAR GAMES

This week we are meeting the 4th graders in the computer room.
They’ve created games with Scratch about polar bears and their habitat in their ICT class.
Today we’ve had our first get together. We’ve had a lot of fun and we’ve learnt a lot. Polar bears eat seals, factories pollute the air and the ice is melting!




VERMICOMPOSTING

Today we have fed our Californian red worms. They are in charge of composting and they are eating quite a lot of school kitchen waste. Lettuce, tomatoes and carrots are their favourite food but they do not like cabbage at all! Amazing!
Have a look at our vermicomposting box. The worms like hiding and don’t like direct light.
The worms and composting are also part of our Project Polar Bear.