science 4 quarter 1

1. SOLID TO
SOLID
MIXTURE

2. Directions: Put a check mark (/) if the
material undergoes sublimation and a
cross mark (x) if deposition.
___1. Frost in windshield of a car
___2. Snow melting on a warm winter
___3. Formation of frost on windows
___4. Shrinking ice in a freezer
___5. Dry ice in a can

3. Riddle: What am I?
Directions: Read the riddle. Guess what phase
change is described in each item.
•1. Water in a kettle change to water
vapor when heated. What phase
change am I?
•evaporation

4. Riddle: What am I?
Directions: Read the riddle. Guess what phase
change is described in each item.
•2. Margarine in a hot pan turns into
a liquid. What phase change am I?
•melting

5. Riddle: What am I?
Directions: Read the riddle. Guess what phase
change is described in each item.
•3. Water droplets on the leaves early
in the morning. What phase change
am I?
•condensation

6. Riddle: What am I?
Directions: Read the riddle. Guess what phase
change is described in each item.
•4. Frost on the car in a cold winter.
What phase change am I?
•deposition

7. Riddle: What am I?
Directions: Read the riddle. Guess what phase
change is described in each item.
•5. Dry ice in a bowl turns into water
vapor. What phase change am I?
•sublimation

8. Riddle: What am I?
Directions: Read the riddle. Guess what phase
change is described in each item.
•6. Pineapple juice becomes solid
when cooled in the freezer.
•freezing

9. Using the KWL chart, ask the pupils
about what they know about mixture,
what they want to know about it and
answer the last column after the
discussions about what they have
learned about the lesson.
KWL CHART
KNOW WANT LEARN

11. GROUP ACTIVITY
a. Group the class into three (3).
b. Distribute the activity sheets.
c. Recall the standards in doing an
activity.
d. Proceed to activity area. After
the experiment, present your
output.

12. DISCUSSIONS
Which pair of materials can be
distinguished/identified after
mixing/combining them?
How about the pair of materials
that cannot be distinguished/identified
after mixing them?
Which mixture looked the same
throughout?

13. Is there a change in the property of
the solid materials in the mixture?
What happens to the solid materials
when mixed with other solid materials?
Can you describe the physical state
of each solid material before you mix
with other solid?

14. Directions: Read the situation and write your answer
in the table below.
Situation:
Your mother asks you the food that she will cook for
your birthday party.
What are these foods?
Give three examples.
What are the solid materials combined in these
foods?
What changes happen when a solid material is
mixed with other solid material?

15. List of
Foods
What solid
materials
are
combined?
What changes
happened to each
mixture?
Can you still identify or
cannot identify?
1.
2.
3.

16. A. Directions: From the materials below, choose five (5)
pairs of solid materials that can be distinguished and five
(5) pairs of solid materials that cannot be distinguished.
Write your answer in the proper column.

17. Your parents hired a mason to put
a concrete fence in front of your
house. You see that he combines
the gravel and sand but still you
can identify them. What is the
reason why you can still identify
the materials even if he mixes
them?

18. You and your sister bake a cake for
your mom’s birthday. You mix the
flour and baking soda. You notice
that they mix completely and you
cannot identify the materials you
combine. What is the reason why
you can no longer identify each
material?

19. What changes happened to solid materials
when mixed with other solid materials?
• A mixture is formed when two or more
materials are combined.
• Some solid materials can be easily
distinguished when mixed with other solid
materials.
• While some solid materials cannot be
distinguished from each other.
The properties of each solid material like their
size, shape and color do not change after

20. Directions: Look at the pictures. Identify the
changes in the properties of the solid materials
when combined/mixed.
1.

21. Directions: Look at the pictures. Identify the
changes in the properties of the solid materials
when combined/mixed.
2.

22. Directions: Look at the pictures. Identify the
changes in the properties of the solid materials
when combined/mixed.
3.

23. Directions: Look at the pictures. Identify the
changes in the properties of the solid materials
when combined/mixed.
4.

24. Directions: Look at the pictures. Identify the
changes in the properties of the solid materials
when combined/mixed.
5.

25. Go to your kitchen. With the
guidance of your parents or elder
brother/ sister, gather three (3)
examples of solid and combine
each object one at a time to form a
mixtures. Describe the changes
happened to each mixture.

26. Bring the following materials tomorrow:
1 pc. Teaspoon, ginger, 4 pcs. Clear drinking
glass, vinegar, cooking oil, rubbing alcohol, 1
teaspoon of sand and flour, 1 pinch of salt,
pepper, vetsin, food color, malunggay leaves