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!


dilluns, 20 de desembre de 2010

International Year of Chemistry: Physical or Chemical change?

MATERIALS:
- 2 plates - 2 sheets of paper - a lighter INSTRUCTIONS: - Make a ball with one of the sheets and place it on a plate. - Fold the second sheet of paper, place it on the plate and burn it. - The first sheet has suffered a physical change, and the second one a chemical change. WHY? The first sheet of paper is still paper, it keeps its properties. It has only changed its shape and size: it's a physical change. The second sheet of paper isn't paper any more. Now it's something different, it's ash: it's a chemical change. WHAT DO YOU THINK ABUOT IT? WRITE YOUR COMMENTS!

5 comentaris:

  1. This experiment is my favourite because it is very interesting.

    ResponElimina
  2. My name is Christian

    INTERNATIONAL YEAR OF CHEMISTRY PHYSICAL OR CHEMICAL CHANGE? is very funny and very beautiful.

    ResponElimina
  3. Hello!
    Experiment:PHYSICAL OR CHEMICAL CHANGE.
    It's very very funny!!!
    The paper is very black.

    ResponElimina
  4. Hello I´m Natalia,

    PHYSICAL OR CHEMICAL CHANGE?

    It´s very funny! I like this experiment because it is very funny!

    ResponElimina
  5. Hello class. The experiment is very very funny
    because the fire burns the paper. The paper is not a paper.

    ResponElimina