English Answer the following question.

Stalls were allotted to many groups of children. Each group selected a topic/idea from the chosen themes. The young scientists began collecting a lot of information about their topic using their science text book, their school library and the internet. They shared and discussed this information in their groups and decided the exact activity for their stall deciding whether they would build and display a model, give a demonstration, present their project through posters or simply exhibit a collection.

"The two basic rules to be followed in the Science Fair were: 1. Everything should be handled by students
2. The entertainment booths and refreshment stalls had to have a scientific base."