Glass test tubes turn waste into treasure
There is one course we must learn in junior high school, and that is chemistry. The most commonly used experimental equipment in chemistry is the test tube. Once the test tube is broken, its mission is completed and can only be thrown away, but just throw it away. Its really a pity, so we can actually make it into a work of art, put a house and grass in the test tube, and give the test tube a new life.