Good bye eTwinning

This is our last experiment.

In order to make our experiment we needed two plastic bottles of 1´5 liters.

In the first place, we perforated a hole of 1 cm in the corks of the two bottles. Soon we filled one of the bottles with water until approximately three fourth parts and if united the two bottles by the corks. In order to unite the two bottles insulating tape can be used. Is very important a good union between the bottle.

When the bottle with water is on the empty bottle it is observed that the water does not fall easily to the inferior bottle, but if we give a circular movement to the superior bottle is generated an eddy and the water falls easily.

When placing the bottle in the superior part, water does not fall by the little compressibility of the air locked up in the inferior bottle that does not leave space to the water that falls. When the eddy is generated when moving the superior bottle, it is put in communication the air that is in both bottles and the water of the superior bottle falls easily in to the inferior bottle.

Tin´s race

In order to make this experiment you need the following materials:

1. An empty softdrink can.
2. A baloon. If we don' have, we can use expanded polystyrene (white cork)

In order to continue with our experiment we make the following procedure:
1. Blow up the baloon.
2. Rub the baloon against your hair or a wool article (for example a scarf).
3. Put the softdrink can knocked down on a table and we approach the baloon. After doing this, we can check that the softdrink can move!

Explanation:
This happens because when rubbing the baloon electricity loads. The attractive electrical forces between the loads or different signs of the baloon and the softdrink can make the tin rotates.

A balloon does not explode

In Spanish

Sunset

In Spanish and Chinese

Refraction

First in Spanish and then in English

Floating ink

Wee need water, ink and salt

Ink floats on salt water because the density is lower

By Carmen and Ana

Arc en ciel

Par: Marta, María, Manuel et Ada.

Flexible bone

Experiments from Ania&Jessika&Nicola

Needed materials:
chicken's bone , vinegar, jar
Put the bone into the jar and fill with vinegar. Screw the lid on a jar and to put back on 2 weeks.



So vinegar is rinsing chemical associations's mineral out in the bone organic compounds stay.
The bone is elastic and it isn't possible for her to break.

Package from Spain

Thank you Spain!

Playing with air pressure

Transparent and Opaque

Easter Traditions in Poland

There were holidays in April in Poland. We would like to tell you something about them. Easter is very traditional holiday for us.
It is a happy and important event for all Christians, because of Jesus resurrection. 40 days before Easter there is a Lent to prepare our hearts and souls for the resurrection of Christ. The last days of Lent are called Paschal Triduum. All of us go to church on these special days. Maunday Thursday is the beginning of Paschal Triduum.

On Holy Thursday we commemorate the Last supper. Good Friday’s when Jesus was crucified. There is no singing in church. No instruments can be heard. We pray silently by the cross which is a symbol of Christ suffering. On that day we limit our food to one and two small meals and don’t eat any meat. The Holy Saturday is the day preceding the day of resurrection . In the morning the entire families go to church in order to bless food. We also go to church in the evening in order to participate in the Holy Mass. The priests bless water and fire. On Sunday Easter we participate in a very ceremonial mass early in the morning. It is the Resurrection Mass. After that the entire families sitt down at table and have special breakfast. We eat the food blessed by the prest in the church. After breakfast children get presents. We wish each other Happy Easter. In the afternoon we meet our friends and relatives. Before the Easter we have a lot of housework. We must clean our houses and flats and prepare food. But we like Easter so much!

The symbol of Easter is egg and Easter bunny. We also paint eggs prepare in many different patterns and colours. Eggs are the most important dish on our Easter table.



We prepare them in different ways . There are also: white sausage, żurek (tradition soup) and horserdish. On Monday People play a special games. Boys throw water over girls. In exchange they get a sweet. Another Easter game is hitting hard- boiled eggs against each other. The person whose egg doesn’t break is the winner. Next game is Egg hunt- eggs made of chocolate hidden in various place for children to find.

Obedient pole

We need: a piece of fabric, a pole, a glass, a piece of cork, a needle, a bottle

I put a needle into a piece of cork. The sharp end of the needle is outside of the cork. I put the cork in a neck of a bootle. I put a glass on the needle. I charge a pole by rubbing with a piece of fabric. I put the pole on the glass. I put my thumb close to the pole and make it move.

Electrostatics by Pavla

Electrostatics by Ondra

We need a plastic folder and small pieces of paper. Rub a piece of fabric with the plastic folder. Put the plastic folder above pieces of paper. The small pieces of paper are drawing up to the folder because the folder is charged and electrons and nucleons in the pieces of paper form dipoles.

Package from Czech Republic

Cypriot students enjoyed presents from Czech Republic. 

Thank you Czech Republic!

Easter Traditions in Cyprus

Package from Spain

Feria de Abril

On fête la fête! Venez à Séville au printemps pour connaître la Feria de Abril. À bientôt!

Water don' falls

Materials you need. A glass, water, paper

Fill glass with water. Cover glass with the piece of paper. Hold the paper with hand ant turn glass with 180 degrees. Take your hand off the paper.

Water don't fall because air pressure push up the paper.