Q1:
A rock is formed from magma that cooled slowly to form large crystals without penetrating the Earth’s surface. Which type of rock is it?
Q2:
A rock is formed from magma that penetrated the Earth’s crust as lava and cooled quickly to produce small crystals. Which type of rock is it?
Q3:
A rock has been heated under high pressure, deep beneath the surface of Earth. It is extremely hard. Which type of rock is it?
Q4:
A rock is formed of thousands of fragments, compacted and cemented together in layers. Which type of rock is it?