DIRECTIONS: In a mixture you can still see the parts. In a solution you cannot. Either way, the parts can be got back out.
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What is combined
Mixture or solution?
How would you separate it?
1.
sand and water
2.
salt and water
3.
iron filings and sand
4.
sugar and hot tea
5.
cereal and milk
6.
oil and water
7.
sand and gravel
8.
food coloring and water
Getting It Back Out
Grade 5 · Matter · Page 2 of 3
DIRECTIONS: Each way of separating uses a property the parts do not share. Which one?
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Method
Which difference does it use?
Use it on…
9.
sieving
10.
filtering
11.
using a magnet
12.
evaporating
13.
letting it settle
A filter paper will not separate salt from water. Explain why not, using the idea of particles.
You are given a jar of sand, salt and iron filings all mixed together. Write the steps to separate all three, in order. Say what you have after each step.
Where Did the Sugar Go?
Grade 5 · Matter · Page 3 of 3
DIRECTIONS: Weigh a glass of warm water with a spoon of sugar beside it. Stir the sugar in, then weigh it all again.
Weighing
Mass
water + sugar, before stirring
after stirring, sugar all gone
difference
What did the scale say the second time? Were you surprised?
The sugar cannot be seen any more. Use the mass you measured to explain where it actually is.
How could you get the sugar back? Describe what you would do and what you would end up with.
Some sugar will not dissolve in a glass of cold water, but the same amount disappears easily in hot. Suggest an explanation.