Answer the following question given this paragraph: Summary A suspension is a heterogeneous mixture of particles of one substance distributed throughout a second phase; the dispersed particles separate from the dispersing phase on standing. In contrast, the particles in a colloid are smaller and do not separate on standing. A colloid can be classified as a sol, a dispersion of solid particles in a liquid or solid; a gel, a semisolid sol in which all of the liquid phase has been absorbed by the solid particles; an aerosol, a dispersion of solid or liquid particles in a gas; or an emulsion, a dispersion of one liquid phase in another. A colloid can be distinguished from a true solution by its ability to scatter a beam of light, known as the Tyndall effect. Hydrophilic colloids contain an outer shell of groups that interact favorably with water, whereas hydrophobic colloids have an outer surface with little affinity for water. Emulsions are prepared by dispersing a hydrophobic liquid in water. In the absence of a dispersed hydrophobic liquid phase, solutions of detergents in water form organized spherical aggregates calledmicelles. Phospholipids are a class of detergent-like molecules that have two Saylor URL: http://www. saylor. org/books. Q: A heterogeneous mixture of particles of one substance distributed throughout a second substance in a different phase is known as what? Choices: - disruption - solution - fluid - suspension A:
suspension

Answer the following question given this paragraph: Changes of state are physical changes in matter. They are reversible changes that do not involve changes in matter's chemical makeup or chemical properties. Common changes of state include melting, freezing, sublimation, deposition, condensation, and vaporization. These changes are shown in Figure below . Each is described in detail below. Q: Condensation, melting, deposition, sublimation, vaporization, and freezing are all considered changes in what? Choices: - density - altitude - speed - state A:
state

Answer the following question given this paragraph: Fixed joints do not allow any bone movement. Many of the joints in your skull are fixed ( Figure below ). There are eight bones that fuse together to form the cranium. The joints between these bones do not allow movement, which helps protect the brain. Q: How many bones fuse together to form the cranium? Choices: - 6 - 3 - 8 - 8 A:
8

Answer the following question given this paragraph: Q: Does the force of magnetism increase or decrease as the distance between objects increases? Choices: - increase - remain stable - fluctuate - decrease A:
decrease