1. Antonia Karagiannidou, Spyrtou Anna
    Teacher, 3rd Primary School of Argos Orestiko, karagiannidouantonia@hotmail.com
    University of Western Macedonia, School of Primary Education, Florina

  2. Meisalo V., Lavonen J.
    Department of Applied Sciences of Education, University of Helsinki, Finland
    veijo.meisalo@helsinki.fi

  3. Monroy G., Lombardi S., Piegari E., Sassi E., Testa I.
    Department of Physical Sciences, University of Napoli, monroy@na.infn.it

  4. C. P. Constantinou, A. Sxolinaki, M. Livitzis, I. Hadjidemetriou,
    Learning in Science Group, University of Cyprus, c.p.constantinou@ucy.ac.cy

  5. D. Psillos, E. Hatzikraniotis, T. Molohidis, M. Kallery, A. Barbas, G. Bisdikian
    Αristotle University of Thessaloniki, psillos@eled.auth.gr

  6. Aikaterini I. Vlachou, Georgiso Tsaparlis, Yael Shwartz, Ruth Ben-Zvi, Avi Hofstein
    Πανεπιστήμιο Ιωαννίνων, Τμήμα Χημείας, gtseper@cc.uoi.gr
    The Weizmann Institute of Science, Department of Science Teaching, Rehovot, Israel, yaels@umich.edu

  7. Kariotoglou, P., Spyrtou, A., Zoupidis, A., Arvanitakis, I., Blouchou, S., Fakazi, E., Kaskalis, T., Malandrakis, G., Pnevmatikos, D., Polatidou, T., Soultanis, K., Triantafyllidou, R.
    University of Western Macedonia, Greece, pkariotog@uowm.gr

  8. Pint? R., Couso D., Hernαndez M.I.
    CRECIM, Universitat Autοnoma de Barcelona, roser.pinto@uab.cat

  9. Eleni Fakazi, George Îœalandrakis, Theodora Polatidou
    Teacher-Postgraduate student, Department of Early childhood Education, University of Western Macedonia, elfakazi@yahoo.com
    Teacher-Department of Primary Education, University of Western Macedonia, gmalandr@edc.uoc.gr
    Teacher, mitsop@gmail.com

  10. Soultanis Konstantinos, Teacher, ksoultanis@uowm.gr
    Spyrtou Anna, Lecturer Department of Primary Education, University of Western Macedonia, aspirtou@uowm.gr
    Laboratory of Science Teaching and Teaching Materials? Production, School of Education, University of Western Macedonia