3. the Three Different Types of Magma Are Andesitic, Basaltic

Name: ______Date: ______Period: ______What is an Igneous Rock? (Check-Up)

Across: 19. Extrusive igneous rocks have ___ crystals. 3. The three different types of magma are andesitic, basaltic, Down and ___. 1. In order for an igneous rock to form, the process of ___ and 6. The most common extrusive igneous rock. cooling has to occur. 7. Extrusive igneous rocks are ___ dense than intrusive 2. Andesitic magma is found erupting from volcanoes around igneous rocks. the ___ Ocean. 10. ___ is a rock that when it cools has hot gases trapped 4. ___ igneous rocks form deep underground from cooling inside, causing air holes to form, which allows some to float magma. in water. 5. Magma is hot, molten rock found ___ the Earth’s surface. 12. Intrusive igneous rocks have ___ crystals. 8. Intrusive igneous rocks form by the cooling of ___. 13. ___ igneous rocks form above the ground from cooling 9. The word, igneous, means ___ in Latin. lava. 11. ___ is a rock that cooled quickly, becoming black and 14. Intrusive igneous rocks are ___ dense than extrusive glassy and is called "volcanic glass." igneous rocks. 12. Extrusive igneous rocks form by the cooling of ___. 15. Extrusive igneous rocks cool very ___. 16. When hot magma or lava cools and hardens, it forms a(n) 17. The most common intrusive igneous rock is ___. ___ rock. 18. Lava is hot, molten rock found ___ the Earth’s surface. Explain why extrusive igneous rocks have small crystals compared to intrusive igneous rocks, which have large crystals. ______

Using the word bank provided, label the diagram below. magma, lava, extrusive, intrusive