It’s Rock Week, so let’s rock!
Igneous rocks are formed when magma cools underground and crystallizes or when it erupts unto the surface of the ground, cools and crystallizes. Magma that erupts onto the surface is called lava. When magma cools slowly underground the crystals are large enough to see. When it cools quickly on the surface, the crystals are very small and you would need a magnifier or a microscope to see them. A common place to find igneous rocks is inside or near volcanoes. Colours can range from white to pink, and green to black.
Here’s a video from Dr. Matthew Genge that should help you understand where these rocks come from:Tags: fun, igneous, kids, learn, outdoors, rocks