Igneous Rock Definition
Igneous rock forms from cooled magma or lava. For example, lava cools quickly above the surface to form igneous rock.
View Lesson on Rocks & Minerals (Including Rock Cycle)If you are on a school computer or network, ask your tech person to whitelist these URLs:
*.wistia.com, fast.wistia.com, fast.wistia.net, embedwistia-a.akamaihd.net
Sometimes a simple refresh solves this issue. If you need further help, contact us.
Rocks & Minerals (Including Rock Cycle)
Fun Facts
- Obsidian forms when lava cools down fast.
- Igneous rocks form by liquid magma cooling near Earth's surface.
- Igneous rock breaks apart over thousands of years to form sediment.
Why Do We Need To Know About Igneous Rock
Learning about igneous rocks helps us see how they’re used in many ways and why they’re important for different jobs. For example, gabbro is used to make roads and granite is used in buildings, showing how these rocks help in making things we use every day. Also, people a long time ago used obsidian, another type of igneous rock, to make sharp tools and weapons.
These rocks are also important in new technology and exploring space. Quartz, a mineral from igneous rocks, is used in electronics because it can keep time when powered. Studying igneous rocks on Earth and other planets like Mars shows how geology, the study of rocks, is not just about the past but also about finding new things in space.
Frequently Asked Questions
Related Topics
- Atom Definition
- Balanced Force Definition
- Camouflage Definition
- Carnivore Definition
- Chemistry Definition
- Classify Definition
- Collision Definition
- Conductor Definition
- Dissolve Definition
- Distillation Definition
- Erosion Definition
- Freezing Definition
- Greenhouse Gases Definition
- Igneous Rock Definition
- Inclined Plane Definition
- Lever Definition
- Lunar Mare Definition
- Magma Definition
- Meteorologist Definition
- Mineral Definition
- Mitochondria Definition
- Molecule Definition
- Opposable Thumb Definition
- Paleontologist Definition
- Particle Model Of Matter Definition
- Phases Of The Moon Definition
- Physical Change Definition
- Physical Map Definition
- Predator Definition
- Properties Of Matter Definition
- Property Definition
- Pull Definition
- Push Definition
- Rain Definition
- Renewable Resource Definition
- Rock Definition
- Salt Water Definition
- Sediment Filter Definition
- Sedimentary Rock Definition
- Simple Machines Definition
- Soil Definition
- Star Definition
- States Of Matter Definition
- Trait Definition
- Unbalanced Force Definition
- Vibrating Definition
- Water Erosion Definition
- Weather Definition
Select Grade
Select Subject
Skip, I will use a 3 day free trial
Enjoy your free 30 days trial