Exploring Science 8 Answers 8g

This unit covers the physical and chemical properties of metals, how they react with substances like water and acids, and how we use them in everyday life.

: An alloy is a mixture of two or more elements, where at least one is a metal. Alloys are often harder than pure metals because the different-sized atoms disrupt the regular layers, making it harder for them to slide over each other. Version 2: Rocks and Weathering Exploring Science 8 Answers 8g

| Term | Definition | |------|-------------| | | Rock formed from cooled magma or lava (e.g., granite, basalt). | | Sedimentary rock | Rock formed from compressed sediment (e.g., sandstone, limestone, chalk). | | Metamorphic rock | Rock changed by heat and pressure (e.g., marble, slate). | | Magma | Molten rock beneath the Earth’s surface. | | Lava | Magma that reaches the Earth’s surface. | | Weathering | The breakdown of rocks in situ (without movement). | | Erosion | The removal and transport of rock fragments. | | Deposition | The laying down of sediment. | | Compaction | Squeezing of sediment layers to remove spaces. | | Cementation | Gluing of sediment particles by minerals. | This unit covers the physical and chemical properties

This article focuses primarily on the content, as that is most commonly associated with the 8G designation. Version 2: Rocks and Weathering | Term |