Επιστημονική έρευνα. Μαθήτρια με φορητό υπολογιστή και μικροσκόπιο. Μελέτη μικροβιολογίας. Διερευνήστε μοριακές μετατροπές. Φοιτητής πανεπιστημίου ή δάσκαλος σχολείου. Πίσω στο σχολείο. Σχολικό εργαστήριο. - Φωτογραφίες & Εικόνες Αρχείου

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