1) Students performed an experiment mixing various substances like salt, powdered milk, oil, and gravel in water to form mixtures. 2) They observed that the salt and powdered milk mixtures appeared uniform throughout, while the oil and gravel mixtures maintained separated layers, with their components still visible. 3) The experiment allowed students to learn that uniform mixtures maintain a consistent composition when sampled from any part, while non-uniform or heterogeneous mixtures have distinct components that can be identified and remain separated.

1. Describe uniform and non-uniform
mixtures

2.  What are they doing?
 Do you also help your mother prepare
food?

3. Motivation
What do you use in
preparing juice, salad and
sandwiches?

4. Group Activity

5. Forming & Describing
Mixtures
Let’s find out: How can you form
mixtures?
Let’s use these materials: four glasses,
tap water, teaspoon, salt,
powdered milk, oil, gravel

6. Let’s do it this way:
⦁ Half-fill the four glasses with tap water.
⦁ Put a teaspoon of salt in one glass. Stir. Label it as “Mixture A.”
⦁ Put a teaspoon of powdered milk in another glass. Stir. Label it “Mixture
B.”
⦁ Put a teaspoon of oil in the third glass. Stir. Label it as “Mixture C.”
⦁ Put a teaspoon of gravel in the fourth glass. Stir. Label it as “Mixture D.”
⦁ Leave the set-ups for about 1 minute. Observe each set-up. Compare
them.

7. Mixture Components Phase after Can you still
(Before mixing) Combining the distinguish the
Substances components?
A
B
C
D
⦁ Fill in the table below
Mixture Components Phase after Can you still
(Before
mixing)
Combining
the
distinguish
the
Substances components?
A
B
C
D

8. Mixture Components Phase after Can you still
(Before mixing) Combining the distinguish the
Substances components?
A
B
C
D
1.Which mixtures can you not distinguish the
components?
______________________________________
___________________________
2. Which mixtures can you still distinguish the
components? Give the components.
_________________________________________________________________
___________________________________________________________________

9. Mixture Components Phase after Can you still
(Before mixing) Combining the distinguish the
Substances components?
A
B
C
D
1.Let’s share our knowledge:
Describe uniform mixtures
________________________________________
____________________________
Describe non-uniform mixtures
_____________________________________________
______________________

10. Mixture Components Phase after Can you still
(Before mixing) Combining the distinguish the
Substances components?
A
B
C
D
What are the characteristics of each
mixture?
How do each mixture differ?
What did you learn in this activity?

11. Mixture Components Phase after Can you still
(Before mixing) Combining the distinguish the
Substances components?
A
B
C
D
Homogeneous refers to a substance that
is consistent or uniform throughout its
volume. They consist of a single phase, be
it liquid, gas, or solid, no matter where
you sample them or how closely you
examine them.
Examples: Air is considered a
homogeneous mixture of gases.

12. Mixture Components Phase after Can you still
(Before mixing) Combining the distinguish the
Substances components?
A
B
C
D
Heterogeneous mixture is a mixture
having a non-uniform composition.
The composition varies from one
region to another, with at least two
phases that remain separate from each
other, with clearly identifiable
properties. If you examine a sample of
a heterogeneous mixture, you can see
the separate components.

13. Mixture Components Phase after Can you still
(Before mixing) Combining the distinguish the
Substances components?
A
B
C
D
Are the mixtures the same?
 How do they differ?
 Describe uniform and non-
uniform mixtures.
Generalization

14. Evaluation
What kind of mixtures are the following. Describe each.

15. Assignment
Write 3 examples of uniform mixtures and
another 2 examples of non-uniform
mixtures.
Describe them.