About This Chapter
ILTS Biology: Phase Changes for Liquids and Solids - Chapter Summary
This chapter's lessons can help you refresh your knowledge of material phase changes before taking the ILTS Biology test. Concepts covered in this chapter include:
- Uncovering what the kinetic molecular theory says about solids and liquids
- Diagramming how substances enter another phase or maintain equilibrium
- Identifying when a substance condenses, freezes, melts, sublimates or deposits
- Differentiating between the phases of water and other substances
- Qualifying the heat of fusion and the heat of vaporization
- Monitoring crystalline structures
These lessons can be viewed on a computer, smartphone or mobile device. Video links make it easy to jump to specific parts of the lesson for additional review. You can track your study progress with a personalized Dashboard feature that even offers an option for contacting the instructors with your questions. You can assess your knowledge through lesson quizzes and a more comprehensive chapter exam.
ILTS Biology: Phase Changes for Liquids and Solids Chapter Objectives
The ILTS Biology test assesses your understanding of basic principles of biology in order to become a certified biology teacher in Illinois. The topics covered in this Phase Changes for Liquids and Solids chapter are part of the physical science subarea, one of six subareas on the ILTS Biology test.
All questions on the ILTS exam are multiple choice, as are the lesson quizzes and the chapter exam we offer. Taking our tests can give you a feel for the types of questions you will encounter on the exam.
1. The Kinetic Molecular Theory: Properties of Solids and Liquids
This lesson explores the kinetic molecular theory and how it pertains to the properties of solids and liquids. You'll learn the properties of solids and liquids, discover the types of intermolecular attractions that occur between them and gain an understanding how phase changes happen.
2. Phase Diagrams: Critical Point, Triple Point and Phase Equilibrium Boundaries
Learn what a phase diagram is and how to interpret phase diagrams. Discover how to use a phase diagram to locate the phase equilibrium boundaries. Also, learn what a triple point and critical point are and how to locate them on a phase diagram.
3. Phase Change: Evaporation, Condensation, Freezing, Melting, Sublimation & Deposition
Substances on Earth can exist in one of four phases, but mostly, they exist in one of three: solid, liquid or gas. Learn the six changes of phase: freezing, melting, condensation, vaporization, sublimation and deposition.
4. Heat of Fusion & Heat of Vaporization: Definitions & Equations
When a substance changes states, like from a solid to a liquid, a lot is happening. This lesson will examine the heat of fusion and the heat of vaporization. It will also explain both formulas.
5. Phase Diagram of Water vs Other Substances: Differences & Meaning
Phase diagrams give scientists specific information about how phase changes occur at different pressures and temperatures. This lesson examines phase diagrams, focusing on water and how it's a little different from most other substances.
6. Crystal Structures and the Unit Cell
This crystallography lesson explores the structure and properties of crystals. You'll learn about the parts of a crystal structure, types of crystals and patterns created by unit cells.
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