Welcome!

This is a blog of the 4th grade class in la Farigola de Vallcarca School in Barcelona. This year we are doing “Aula de Ciències” in English.
In this blog we want to show you the experiments we do in our Science Lab. Science is fun!


dimarts, 10 de gener del 2012

Floating egg

MATERIALS:
- 1 egg
- A glass of water
- A spoon
- Salt


INSTRUCTIONS:
- Fill the glass with water.
- Put the egg into the glass.
- The egg sinks.
 
- Add two spoonfuls of salt.
- Stir.
- Add more salt until the egg starts to float.

WHY?:
Salt water is denser than tap water. When water becomes salty enough, the egg weights less than water, so the egg floats to the top.

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4 comentaris:

  1. Abril16 de gener del 2012, a les 6:36

    I like this experiment but I did this experiment before.

    ResponElimina
  2. Josep Martí16 de gener del 2012, a les 7:17

    This experiment is very easy and very cool.

    ResponElimina
  3. Carla18 de gener del 2012, a les 12:23

    I like a lot this experiment, but it was difficult explain it.

    ResponElimina
  4. Sara31 de gener del 2012, a les 8:58

    I LIKE THIS EXPERIMENT
    BECAUSE THE EGG BOUNCES LIKE A BALL.
    IT IS VERY VERY VERY FUNNY!!!!!!!!!!

    ResponElimina

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