5. Maple sap is water containing sugar in solution.
6. In the salt region along Lake Huron, holes are drilled to the salt beds, water is poured in, then pumped out and evaporated. Explain.
7. Meat broth is a solution of certain materials in the meat.
8. How could you manufacture salt from sea water?
SOLUTION OF LIQUIDS
Try to mix oil and water, benzine and water, oil and benzine. Only in the third case do we find a permanent mixture, or solution. Try to dissolve vinegar, glycerine, alcohol, mercury, with water.
Applications:
1. Paint is mixed with oil so that the rain will not wash it off so easily.
2. Water will not wash grease stains. Benzine is necessary.
3. Why is it necessary to "shake" the bottle before taking medicine?