Kalyani shows experiment using globe and explains her class 5 students that part of the Earth facing the Sun has day and the part of the Earth away from the Sun has night. Ayesha was fascinated by this. She asked, "If we start walking and keep on moving in that direction can we find night? In which direction will we meet night?" All the students laughed. What should be the response of Kalyani?
1
She should instruct the class to stop laughing and maintain discipline
2
She should explain that this is not possible since that part of Earth will be very far
3
She should encourage students to find out the answer to this question
4
She should tell that today they will study only the occurrence of day and night and discuss this in next class