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Sci Worksheet W4 Act 1

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Schools Division Office

Division of Mandaluyong
FILEMON P. JAVIER ELEMENTARY SCHOOL

SUSTAINED LEARNING
ACTIVITIES
NAME: _____________________________________________________
GRADE/SECTION: ____________________ DATE: _____________
1. Investigate changes that happen in materials under the application of heat. SCORE
2. Describe the changes that happen in materials under the application of heat.

FILIPINO 2 SCIENCE 5
Materials under the application of heat

 Changing Phases
 When heat is applied to materials they undergo changes. They may
change into different states- solid, liquid, or gas.
 Heating materials can cause materials to change

Example:
• A slab of butter left lying in the sun will melt.
• When ice is warmed it changes into water.
• When you heat water, tiny droplets of water leave the container and
enter the air. These tiny droplets are called water vapor. This process is called
evaporation and is part of the water cycle.

DIRECTIONS: Describe the changes that happen in the following materials


when heat is applied. Choose the letter of the correct answer from the box.

MELC Quarter 1 Week No. 4 Code: S5MT-Ic-d-2


Competency: Investigate changes that happen in materials under the application of heat.
______1. plant leaves exposed to sunlight
a. chemical change
______2. iron metal is heated to a high temperature
b. caramelization
______3. burning of wood
______4. boiling water with egg c. solidifies

______5. heating sugar d. food-making process


e. material becomes
soft
f. turns to gas

DIRECTIONS: Let’s make a simple experiment.


What you need: Ice in a glass.
What to do:
a. Place the glass with ice under the sun.
b. Observe what happen to the ice after 10 minutes.
c. Record your observations
Questions:
1. What happened to the ice when heated? Why?
___________________________________________________________________
2. Is there a change in the appearance of the ice?
___________________________________________________________________
3. What change took place?
___________________________________________________________________
4. Describe the changes in the properties of the materials that took place
when heated.
___________________________________________________________________
5. How did you feel with the activity?
___________________________________________________________________

DIRECTIONS: Read the following sentences and questions carefully.


Part I: Write True or False
________1. Size and shapes of pieces of wood changes when heated.
________2. Water cools when placed under the sun.

MELC Quarter 1 Week No. 4 Code: S5MT-Ic-d-2


Competency: Investigate changes that happen in materials under the application of heat.
________3. Evaporation occur when water is heated.
________4. Marshmallow melts as you exposed it to sunlight.
________ 5. Change takes place when chocolate is heated.
Part II: Choose the letter of the correct answer.
6. In which place will rusting of iron occur easily?
a. humid place c. dry place
b. dusty place d. shady place
7. When metal rusts, the material that is rusting becomes ___________.
a. Hard c. strong
b. Soft d. sturdy
8. Which is true about chemical change?
a. A new material is formed.
b. The product cannot be changed to its original form.
c. Both a and b are correct.
d. The product is improved and becomes durable.
9. Which of the following materials can resist the harmful effects of water
and oxygen?
a. galvanized iron c. stainless steel
b. ordinary iron d. both a and c
10. Which of the following is NOT an example of change brought about by
heat exposure on a material?
a. electricity produced by a solar panel
b. rusting of a steel wool
c. charged cellphones
d. charged of batteries used to run a toy

 Science and Health for Daily Use 5


Let’s Practice

1. d 3. A 5. b

MELC Quarter 1 Week No. 4 Code: S5MT-Ic-d-2


Competency: Investigate changes that happen in materials under the application of heat.
2. e 4. c

Let’s Do More
1. What happened to the ice when heated? Why?
Turned into liquid.
2. Is there a change in the appearance of the ice?
As liquid water is heated, it evaporates into water vapor.
3. What change took place?
The change from the solid state to the liquid state is called melting.
4. Describe the changes in the properties of the ice that took place when
heated.
Application of heat to ice causes only physical changes in which no
substances are formed.
5. How did you feel with the activity?
I find the activity engaging.
Let’s Take the Challenge
1. False 6. a
2. False 7. d
3. True 8. c
4. True 9. d
5. True 10. b

PREPARED BY: Mae Lyn Joy S. Guerrero


Grade 5 - Teacher

CHECKED BY: Nelsie B. Caculitan


MT/Science Coordinator

NOTED BY: __Josephine C. Emperado__


Principal

MELC Quarter 1 Week No. 4 Code: S5MT-Ic-d-2


Competency: Investigate changes that happen in materials under the application of heat.

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