Flocabulary: Types of Rocks

Which type of rock was the first to exist on the planet?

• igneous

• metamorphic

• sedimentary

Which types of rock forms when an existing rock changes under extreme pressure and intense heat?

• Igneous

• sedimentary

• metamorphic

Which type of rock forms through weathering, erosion, and deposition?

• igneous

• sedimentary

• metamorphic

Tags

NGSS.MS-ESS2-4

Which of the following would be a clue that a rock is igneous?

• It has crystals

• it has a complete fossil in it

• It has bands

• it is very soft

Which of the following would be a clue that a rock is sedimentary?

• It has gas bubbles througout

• It has small particles stuck together

• It is very hard

• All of these

Which of the following would be a clue that a rock is metamorphic?

• It has a complete fossil in it

• It has gas bubbles

• It is very soft

• It has ribbon-like layers, or bands

Coquina is a rock made of small pieces of broken shells. Ocean waves break seashells into smaller pieces. Over time, these pieces are moved and deposited. When they stick together, they form coquina. Coquina is most likely a(n) ________ rock.

• igneous

• sedimentary

• metamorphic

Diorite is a rock with crystals. It can form when molten lava cools down in the Earth’s crust. Diorite is most likely a(n) ________ rock.

• igneous

• sedimentary

• metamorphic

Quartzite is a rock that can form at the boundaries of tectonic plates. Over time, sandstone buried at the boundary is folded and changed by pressure and heat. The sandstone becomes quartzite. Quartzite is most likely a(n) ________ rock.

• igneous

• sedimentary

• metamorphic

Pumice is a rock that forms during volcanic eruptions from lava that cools very quickly. Pumice is most likely a(n) ________ rock.

• 
  

• igneous

• sedimentary

• metamorphic