One aspirin diluted in one gallon of water on the first watering. Just water thereafter.
A mixture of sugar and water is best called a solution.
A solution is a clear mixture in which a substance is dissolved in water. (A colloidis a mixture having insoluble particles suspended in water)
Salt and water bleach
Milk in any form is a mixture of many substances and so does not have a chemical formula.
A filter paper. ;)
Put it in a mixture of salt water and ice.
Evaporation
Put it in a mixture of salt water and ice.
When choosing a Christmas wine to go with a Christmas lunch, such as ham, choosing one with a dash of sweet makes for a smooth and tasty mixture. Also, a lower alcohol content will mesh well with the sugary taste and cause less nausea.
Neither "substance" nor "mixture" is an apt designation for salt water. Salt water is best described as a "solution of salt in water". It would be a good idea for you to review the difference between "mixture" and "solution".
Flour and water mixture work fine with light projects
mixture of water and household bleach