CONTENT STANDARD (what students need to know)


Students can demonstrate understanding of the standard by being able to:

Solutions are mixtures in which particles of one substance are evenly distributed through another substance. Liquids are limited in the amount of dissolved solid or gas that they can contain. Aqueous solutions can be described by relative quantities of the dissolved substances and acidity or alkalinity (pH).

Give examples of common solutions. Explain the differences among the processes of dissolving, melting, and reacting.

Predict the result of adding increased amounts of a substance to an aqueous solution, in concentration and pH.

The rate of a physical or chemical change may be affected by factors such as temperature, surface area, and pressure.

Predict the effect of a change in temperature, surface area, or pressure on the rate of a given physical or chemical change.