in the bag.
3) Put those broken leaves in small paper bag then pressed hard inside and closed the
bag by stapling. [size H-6 inch X W-2.5 inch X L-2 inch] (image 4, 5)
4) When it catches fire , literally it burns like a coal block, and burns for 1/2
an hour (image 6)
Its quite interesting, and fun ! Conserving Energy.