1 Igneous Rocks: form by crystallizing melted material (magma). 2  They can form either on the surface (extrusive igneous rocks), or deep in the crust (intrusive or plutonic igneous rocks). 3  Volcanoes are places where magma erupts as lava or ash.etamorphic rocks: 1  form by recrystallization of either igneous or sedimentary rocks. 2  This happens when the temperature, pressure or fluid environment change and a rock changes its form (e.g. limestone turns to marble). 3  The range of temperatures for metamophism is 150C up to the melting temperature.
1 Answer 1. Depending on the temperature in your fridge, cooked lentils will be safe to eat for 2 to 5 days when using a sealed container, filled with the cooking water. By immersing them, your lentils won't dry out and they'll be ready to use whenever you need them - just drain the amount you need.
In fact, the answer is very simple. All you need to remember is that lentils fall into two broad classes: the red, and the rest. Red or split lentils (they're actually a bright orange color) are different from all the other types in two important respects. They need much less cooking time (less than ten minutes). And they disintegrate into a mush when cooked. Because of this second point, red lentils are unsuitable for most lentil recipes.