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Discover whether certain types of rocks are more difficult to break than other types of rocks.The purpose of this experiment is to test various sedimentary, igneous and metamorphic rocks to find out w ...

By applying more and more pressure to a piece of aluminum foil “clay,” we can discover, stage by stage, how heat and pressure turn clay into slate, phyllite, and finally schist.It is an educational co ...

Los ingredientes de este paquete de actividades son diversas fotografías de nuestro planeta tomadas por satélites a diversas horas del día y desde diversas posiciones. Esto nos pe ...