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2016-2017
ΑΛΛΑΓΕΣ ΣΤΗΝ ΕΠΙΦΑΝΕΙΑ ΤΗΣ ΓΗΣ: ΗΦΑΙΣΤΕΙΑ - ΠΕΙΡΑΜΑ
Mάθημα στη Γεωγραφία: Αλλαγές που συμβαίνουν στην επιφάνεια της Γης: Ηφαίστεια
Υλικά:
Μαγειρική σόδα ή αμμωνία, Ξίδι, 1 πλαστικό μπολ, αλεύρι, νερό. Φτιάχνουμε έναν κρατήρα ηφαιστείου από ζυμάρι και ρίχνουμε την σόδα. Στη συνέχεια με ένα σταγονόμετρο βάζουμε το ξίδι. Προσθέτουμε χρώμα μαγειρικής για πιο εντυπωσιακό αποτέλεσμα.
Η μαγειρική σόδα αποτελεί βάση ενώ το ξίδι είναι οξύ. Όταν αλληλεπιδρούν, δημιουργούν το ανθρακικό οξύ, που είναι πολύ ασταθές. Για ένα καλύτερο αποτέλεσμα, μπορείς να τυλίξεις το δοχείο με μια χειροτεχνία που να το κάνει να θυμίζει αληθινό ηφαίστειο. Όρεξη να υπάρχει και το αποτέλεσμα θα είναι εντυπωσιακό. Το πείραμα έφερε στην τάξη ο Γιάννης Τσαμπικάκης







