Rocks and the Rock Cycle Notes

**Chapter Four: Rocks** **Lesson 1: Rocks and the Rock Cycle** **Rocks:** a natural, solid mixture of minerals or grains *Grains:* the fragments that make up a rock **Texture:** the grain size and the way grains fit together in a rock *Composition:* the make-up of a rock... the minerals a rock...

**Chapter Four: Rocks** **Lesson 1: Rocks and the Rock Cycle** **Rocks:** a natural, solid mixture of minerals or grains *Grains:* the fragments that make up a rock **Texture:** the grain size and the way grains fit together in a rock *Composition:* the make-up of a rock... the minerals a rock is made of - It is used to determine where the rock was formed **Rock cycle:** the series of processes that change one type of rock into another type of rock 1. 3 main types of rocks: a. Igneous rock b. Sedimentary rock c. Metamorphic rock 2. Cycle d. Sedimentary rock i. **Sediment:** rock material that forms where rocks are broken down into smaller pieces or dissolved in water as rocks erode ii. Pressed and cemented together e. Metamorphic rock iii. Rock is forced down iv. Intense heat and pressure squeeze rock and "cook it" f. **Magma:** hot, molten earth (rock) underground g. **Lava:** molten rock that erupts on Earth's surface h. Igneous rock v. Magma rises to earth's crust vi. Cools and solidifies