The one-day workshop for teachers who act as guides in the National Children’s Science Congress was held at Anglo Indian Girls’ High School in Kozhikode on Tuesday. The projects can be prepared on the main topic ‘Science, technology and innovations for development’ or the sub topics such as “Management of natural resources, food and agriculture, energy, health, sanitation and nutrition, lifestyle and livelihood, disaster management and traditional knowledge”. Teams of five students can prepare the projects within three months under the guidance of the selected teachers, a press release said.