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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In the previous chapter, we saw how to separate mixtures. For<br />
example, we could h<strong>and</strong> sort the objects, sieve the larger grains<br />
out of the mixture <strong>and</strong> decant the oil from the top of the water.<br />
But what about asolution? Do you think you can separate the<br />
sugar from the solution once it has been dissolved? Let's try to<br />
find out the answer to this question!<br />
INVESTIGATION: How can we recover a solute (sugar)<br />
from the solution?<br />
AIM (What do you want to find out?):<br />
MATERIALS AND APPARATUS:<br />
• sugar solution<br />
• 2 beakers<br />
• funnel<br />
• filter paper<br />
• evaporating dish<br />
• st<strong>and</strong><br />
• Bunsen burner<br />
• matches<br />
METHOD:<br />
1. Pour a small amount of the sugar solution into an evaporating<br />
dish.<br />
2. Place the dish outside, or on awindowsill, in asunny spot.<br />
3. Leave the dish outside <strong>and</strong> check regularly to observe what is<br />
happening to the sugar solution.<br />
4. Your teacher will demonstrate whether you can also recover<br />
the sugar by boiling the solution.<br />
5. Record all your observations in the table below.<br />
Chapter 3. Solutions as special mixtures<br />
143
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