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Powerpoint presentation used for Science 6 Classroom Observation for the First Quarter. This presentation intends to differentiate homogeneous from heterogeneous mixtures.
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q1 week 2.pptx
1.
2.
3. Week 2 Properties of
Materials
Precilla U. Halago
Science Teacher
1. describe the appearance of homogeneous mixtures
2. describe the appearance of heterogeneous mixtures
3. classify mixtures into homogeneous and
heterogeneous
4. Science V: OBJECTIVE
Objectives:
1. describe the appearance of
homogeneous mixtures
2. describe the appearance of
heterogeneous mixtures
3. classify mixtures into
homogeneous and heterogeneous
6. Review
Do You Recognize Me?”
Pure substance mixture
They are produced in nature by soil
bacteria and fungi. This gives the microbe
an advantage when competing for food
and water and other limited resources in
a particular habitat, as the antibiotic kills
off their competition.
7. Review
Do You Recognize Me?”
Pure substance mixture
Evaporated milk is made
by removing water from
fresh milk and then
heating it. Heating the
milk gives it the creamy,
slightly cooked taste and
darker colour. When
mixed with an equal
amount of water, it can
be substituted for fresh
milk in recipes
10. Experiment
Creating Mixtures
Mixture 1: water and salt
(liquid-solid) Mixture 2:
salt and pepper (solid-
solid)
Mixture 3: water and powdered juice
(liquid-solid) Mixture 4: water and
powdered chocolate (liquid-solid)
Mixture 5: sand and pebbles (solid-solid)
Mixture 6: water and food coloring (liquid-solid)
1 2 3 4 5 6
12. Experiment
Guide Questions
1. 1. What have you observed in each
mixture before and after it is
mixed?
2. 2. How do you differentiate a
homogeneous mixture from a
heterogeneous mixture?
13. Remember :
A mixture is a combination of two or more pure
substances. They have variable compositions that
can be separated through physical means. If you
have observed many of the delicious food that
you eat and things you use in our everyday life are
mixtures. ‘Pastil’, ‘kinilaw’, fruit juice, fruit salad,
toothpaste, shampoo housepaint, cough syrup
and sinigang are all examples of mixtures.
14. Remember :
By looking at the physical
appearance of the mixture, it
can help you decide which is
homogeneous or
heterogeneous.
15. Remember :
From the original phase, notice that
other mixtures changed its phase. This
may occur when combining different
substances. Some retain its phase
while others may change when
dissolved in liquid.
16. Remember :
If you answered mixtures 1, 3, 4, and 6 are
homogenous mixtures. You got the right
answers. Why? Those mixtures have
uniform composition and show one phase.
Salt was dissolved when combined with
water and the powdered juice, chocolate
and food coloring mixed with water
dispersed and were distributed evenly.
17. Remember :
Their components appeared as
one. Other examples of
homogeneous mixtures include
salt or sugar dissolved in water.
The air that we breathe is a
mixture ofgases.
18. Remember :
While mixtures 2, and 5 are
heterogeneous mixtures. The
components of salt, pepper, sand
and pebbles are visible. The
particles are not dispersed and not
distributed evenly.
19. Remember :
Also, they have no uniform
composition. Other examples
include ‘halo-halo’ which is popular
during summer, salads, soil, mud,
friedrice, ‘chopsuey’, ‘pinakbet’,
mixture of cement, and home-made
medicinalmixtures.
29. Caring for the Environment
Air Pollution is an example of environmental
problem. It produces a mixture of poisonous
or noxious solid substances. As a Grade 6
pupil, in what ways can you help reduce or
prevent air pollution? What can you do to
increase awareness about the effects of
pollution to your friends, family and the
community?
31. Assessment
1. What is formed when two or
more substances are
combined?
A. Pure Substance
B. Mixture
C. Matter
D. Solid Matter
32. Assessment
2.What mixture has a uniform
composition and exist in single
form?
A. Homogeneous Mixture
B. Matter
B. Heterogeneous Mixture
D. Pure Substance
33. Assessment
3.What mixture has NO uniform
composition and exist in two or
more phases?
A. Matter
B. Homogeneous Mixture
C. Pure Substance
D. Heterogeneous Mixture
34. Assessment
4. Which is NOT a
heterogeneous mixture?
A. Cement
B. Salad
C. Halo-Halo
D. Air
35. Assessment
5. What does NOT belong the
group?
A. Air
B. Dishwashing Liquid
C. Mango Juice
D. Fried Rice
36. Assignment
List down 3 examples of
homogeneous mixtures
and 3 examples of
heterogeneous mixtures