Libros de Maria Koran (2 libros)
Los estados de la materia — Los sólidos
Did you know that solids can be hard or soft? Solids can become liquids when they get hot. Discover more interesting facts in Solids, part of the States of Matter series of EYEDISCOVER books.
Los estados de la materia — Los gases
Did you know that gases have no size or shape? Gases can become liquids when they get cold. Discover more interesting facts in Gases, part of the States of Matter series of EYEDISCOVER books.