- The document discusses solutions and mixtures, explaining that a solution is a type of mixture where a solid dissolves evenly into a liquid. It provides examples like sugar dissolving in water to form a solution. - Key properties of solutions are discussed, such as solids breaking apart into particles when dissolved and how solutions can be separated through evaporation. - An activity is described where students use a diagram to identify items that do or do not dissolve in water to form solutions.

1. Solutions:

2. 5.5 The student knows that matter has
measurable physical properties and
those properties determine how matter is
classified, changed and used.
(D) Identify changes that can
occur in the physical properties of
the ingredients of solutions, such
as dissolving salt in water or adding
lemon juice to water.

3. Highlights from Science Information Booklet:
~ It is important for students to realize that solutions
are a type of mixture. Students should also be
aware that the parts of mixtures do not chemically
change and that mixtures can be physically
separated into their original components.
~ In their knowledge of solutions, students should
understand that as solids dissolve, they do not
“disappear” but break apart into individual particles.

4. Mixture – a combination of two or more
substances that can be separated. Each
substance keeps most of its own physical
properties.
Solution – a liquid mixture. Solutions are
often solids dissolved into liquids.

5. For example, when you stir sugar into
water, the sugar becomes harder to see.
When you taste the water, it now tastes
sweet. The sugar has changed, in shape
and size. The sugar particles are evenly
mixed with the water particles. We say
that the sugar has dissolved into the
water.
dissolve – the process of a substance
mixing with a liquid so evenly, you can’t
tell one substance from the other

6. MMiixxttuurree ooff WWaatteerr && SSuuggaarr
The sugar dissolves into the
water to form a solution.

7. The hotter the liquid, the faster
substances, such as sugar, salt, tea or
coffee, will dissolve.
Solutions can be separated! Usually,
solutions can be separated by letting the
liquid part of the solution evaporate.

8. Use the following website to complete
an activity about solutions.
Solution Activity

9. Solution or Not
dissolves does not
dissolve
Use the tree diagram above to list items that dissolve and
items that do not dissolve from the website.

10. Solutions or Not
dissolves
does not
dissolve
Does your list
look like this???
• sugar
• salt
• instant coffee
• sand
• flour

11. * Test your
knowledge about
solutions by
answering the
next 4 questions

12. 1. When the sugar and water
in the beaker are combined,
they will create a solution
because -
A. the water will now turn into a gas
B. the sugar will dissolve into the water
C. the water will dissolve into the sugar
D. the two substances are chemically
combining and chemically changing their
properties

13. B is the correct
• Remaenmsbwere ar !solution is created when
a solid is dissolved into a liquid. The
sugar is being dissolved by the water.
• The sugar would not make the water
change into a gas.
• Water does not dissolve into sugar.
• The substances in a solution do not
change chemically and do not change
their chemical properties.

14. 2. When placed in a container full of
water, which of the following would
create a solution?
A. sand
B. pebbles
C. pepper
D. salt

15. The correct answer is D.
• Salt would dissolve into the water. Even
though the salt particles are too tiny to
see, they are still there. They have
spread out evenly throughout the water.
• Sand, pebbles, and pepper would not
dissolve into the water, and would
therefore not create a solution. You
would still be able to see them in the
water and none of their properties would
change.

16. 3. Which of the following is an
example of a solution?
A. glass of Kool-Aid
B. bowl of salad
C. tablespoon of salt
D. cup of sugar

17. The correct answer is
• Kool-AAid. is an example of a solution because
of the things that are dissolved into the
water. For example, to make Kool-Aid you
would use a powdered flavoring and sugar.
• Salad is an example of a mixture. The items
put into a salad keep their physical properties
and they can be easily separated.
• Salt and sugar can be used to make a solution
but by themselves they are simply a substance.

18. 4. Some students wanted to test the rate at which
salt dissolves in water. They put 10g of salt
and 200mL of water into each beaker. In which
beaker will the salt dissolve the fastest?
A.Beaker K C. Beaker M
B. Beaker L D. Beaker N

19. The correct answer is
• RemeDm.ber that a substance will dissolve
faster into a liquid that has been heated to a
higher temperature.
• Beaker N has the greatest temperature at
35° Celsius. This means that the salt will
dissolve at a faster rate than in the other
beakers.