1) Both magma and lava are molten rock. Magma is found underground, while lava is magma that has erupted onto the Earth's surface.
2) An igneous rock is a type of rock that forms when molten rock (magma or lava) cools and solidifies.
3)
| Type of Igneous Rock | Does the rock form above or below the earth's surface? | Does the rock form from lava or magma? | At what speed does the rock cool? | What size crystals does the rock have? |
| :--- | :--- | :--- | :--- | :--- |
| Extrusive Igneous Rock | Above | Lava | Fast | Small |
| Intrusive Igneous Rock | Below | Magma | Slow | Large |
Parent Tip: Review the logic above to help your child master the concept of igneous rock worksheet.
