All info should be provided in English. Please use CAPITAL LETTERS
Name the City e.g. ATHENS
Teachers Name e.g. GEORGE PAPPAS
Classroom ID:
This ID is given by the teacher to all students and contains the date (yymmdd), the first two letters of the teacher's Name and the first three letters of his/her Surname. For an event taking place on March 19th, 2015 by the teacher GEORGE PAPPAS the ID should be: 150319GEPAP
Student ID:
This ID is unique for every student and will be used in the pre- and post-tests. It consists of the day of the month the student was born, the first two letters of the student's Name and the first three letters of his/her Surname. For the student YANNIS DOUMAS born on the 14th of a specific month the ID would be: 14YADOU




1. Eratosthenes assumed that sun rays are parallel. However, when we draw the sun we present it as a small yellow disk with divergent rays coming out of it. Which of the following is correct?

   The rays are divergent because the sun is considered as a point source

   The rays are parallel, because the sun is very far from earth

2. What is a local noon? How does it change over the year?

   The local noon is the mid-time between sunrise and sunset. As the duration of the day grows the local noon shifts to later hours.

   The local noon is at 12.00 local time . It doesnĘt change with respect to the location of a place.

3. In the activity you have to fix the rod vertically to the ground. If the location you choose to fix the rod is vertically on the slope of a hill will your measurement be accurate?

   No, because the axis of the rod must point to the center of the earth.

   Yes, because the rod is vertical to the ground.