| A | B |
|---|
| rock | a solid mixture of one or more minerals |
| igneous rock | rock that forms when magma or lava cools and hardens |
| sedimentary rock | rock that forms when sediments become compacted and cemented |
| metamorphic rock | any type of rock that changed by heat, pressure, or fluids |
| rock cycle | the continuous process that causes rocks to change from one type to another |
| magma | molten material that forms deep beneath Earth’s surface |
| lava | magma that reaches the surface |
| weathering | a process in which rocks are physically and chemically broken down by water, air, and living things |
| sediments | bits of Earth materials |
| granite | an intrusive igneous rock that forms when magma cools slowly beneath Earth’s surface |
| intrusive igneous | rocks that form when magma hardens beneath Earth’s surface |
| lava | melted material at Earth’s surface |
| rhyolite | an extrusive igneous rock that forms when lava cools quickly at Earth’s surface |
| fire | the meaning of the Latin word ignis |
| extrusive igneous | rocks that form when lava hardens |
