9th Grade Science Study Guide

Apuntes

9th Grade Science Study Guide • Subtopic: Temperature Q: What is the temperature of a substance? A: It is a measure of the average kinetic energy of the particles within it, usually measured with a thermometer. • Subtopic: Thermal Energy Q: What is thermal energy? A: It is the total energy of all the particles in an object. • Subtopic: Sublimation Q: Define sublimation. A: It is the specific process where a solid changes directly into a gas, skipping the liquid phase (like dry ice turning to fog). • Subtopic: Vaporization Q: What is vaporization? A: It is the general term for a liquid changing into a gas. • Subtopic: Boiling Point Q: What is the boiling point of a liquid? A: It is the specific temperature at which the pressure of the vapor escaping the liquid equals the air pressure above the liquid. • Subtopic: Condensation Q: Define condensation. A: It is the process where water vapor in the air cools and turns back into liquid droplets, such as forming morning dew. • Subtopic: Evaporation and Melting Point Q: What is evaporation? A: It is the gradual change from liquid to gas that happens even when the water does not reach its boiling temperature of 1...