Describe the relationship of the positions of the sun and the moon on the ocean's tides. A mixture of substances often can be separated into the original substances using one or more of the characteristic properties. Distinguish between a mixture and a solution, recognizing that a solution is one type of a mixture. Identify the potential dangers associated with using some mixtures and solutions, such as bleach, ammonia, abrasive powders, etc. Investigate the effect of temperature changes on the solubility of a substance.
Solubility is one characteristic property of a substance.
Distinguish between solvent and solute. Investigate the effects of stirring, shaking, and curshing on the rate of dissolving of solutes. The motion of an object can be described by its position, direction of motion and speed. If more than one force acts on an object along a straight line, then the forces will reinforce or cancel one another. Distinguish among gravity, friction, magnetism, drag, lift, and thrust.