Isbn: 9787502944735 - primary and secondary lightning the hedge knowledge reading (1 resultados)

paperback. Condición: New. Paperback Pages Number: 20 What is the lightning? What forms of lightning have? The lightning there is any harm? How to obtain the lightning warning signal? Lightning on the human body. what harm? Lightning strike caused the electrical fire how to do? How a trip mine? . This reading materials will be illustrated in the form. the vivid language of mine hedge knowledge for the majority of primary and secondary students. …