Natural Sciences and Technology Grade 6-A - Thunderbolt Kids
Natural Sciences and Technology Grade 6-A - Thunderbolt Kids
Natural Sciences and Technology Grade 6-A - Thunderbolt Kids
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3 Solutions as special mixtures<br />
NEW WORDS<br />
• solution<br />
• solvent<br />
• solute<br />
134<br />
KEY QUESTIONS<br />
• When is amixture also asolution?<br />
• Do all substances dissolve in water?<br />
• Is therealimit to how much of a substance can be dissolved<br />
in a given amount of water?<br />
• How can the components of asolution be separated?<br />
3.1 Solutions<br />
In the last chapter we looked at mixtures. We are now going to<br />
look at a special case of mixtures, which are called solutions.<br />
When is amixture also asolution?<br />
When two substances are mixed it will be possible to still see each<br />
substance in the mixture. Is sugar <strong>and</strong> s<strong>and</strong> amixture? Yes!<br />
A solution is aspecial type of mixture. What makes a solution so<br />
special? When is amixture also asolution?<br />
Often, the best way to answer a question is to ask it in adierent<br />
way: When is amixture NOT a solution?<br />
In the next activity we are going to make a few mixtures <strong>and</strong> then<br />
decide which of them are solutions, <strong>and</strong> which of them are not.<br />
That should help us find the answer to the question: When is a<br />
mixture also asolution?
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