EAPS 106 Homework 1 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified

EAPS 106 Homework 1 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified What is a crystal lattice? A crystal lattice is the orderly, repeating arrangement of atoms in a mineral. Why do minerals have specific shapes? Their atomic structure controls how crystals grow. What is an element? An element is a substance made of only one type of atom. What is a compound? A compound is a substance made of two or more elements chemically bonded. What does silicate mean in geology? Silicate refers to minerals made of silicon and oxygen. What is the most abundant mineral group in Earth’s crust? Silicate minerals are the most abundant. What is quartz mainly composed of? 2 Quartz is made of silicon and oxygen. Why is quartz resistant to weathering? It has strong chemical bonds. What is igneous rock texture? Texture describes the size and arrangement of mineral crystals. What causes coarse-grained igneous rocks? Slow cooling of magma underground. What causes fine-grained igneous rocks? Rapid cooling of lava at the surface. What is basalt? Basalt is a fine-grained volcanic igneous rock. What is granite? Granite is a coarse-grained intrusive igneous rock. What does sediment size indicate? Sediment size indicates transport energy. 3 What is cementation? Cementation is minerals binding sediments together. What is compaction? Compaction is sediments being pressed together by weight. What is shale? Shale is a sedimentary rock made of clay-sized particles. What is sandstone? Sandstone is a sedimentary rock made of sand-sized grains. What is limestone mainly composed of? Limestone is mainly composed of calcium carbonate. How do metamorphic rocks change? They change without melting. What is foliation? Foliation is layered mineral alignment in metamorphic rocks.