Igneous Rocks - Chapter 2.2

Question 1

I form when molten magma forced it way into the crust. I cooled very slowly over millions of years, allowing large crystals to form. I then, eventually came to the surface when the overlying rocks were worn away. I am varied in colors from black or grey to pink. I am used in the building industry or for monuments. What am I?

Answer 1

Granite.

Question 2

Basalt formed when lava spread out of across the Earth’s surface. It cooled very ___ and solified because it was exposed to the ___. As a result, it has ___ ___ that cannot be seen in the naked eye.

Answer 2

quickly, air, tiny, crystals.