5. Directions:
Guide the students while doing the
various activities.
Remind them to observe
precautionary measures and to be
careful in handling the materials while
performing the activity.
6. Perform each activity and answer
the questions that follow. Write your
answers in your Science notebook.
8. Bend each of the
given materials.
Observe and
describe what
happens to each
material.
9. Copy and fill-out
the table below in
your notebook.
Materials
What happened to
the material when
bent?
Plastic straw
Plastic ruler
Rubber Slipper
Electric Wire
Metal Spoon
Paper clip
Change in shape
Change in shape
Change in shape
Change in shape and
size
Change in shape
Change in shape
and size
10.
11. 1. What are the solid materials that can
be bent?
2. If the solid materials is bent will it
change it’s form? What will change
when it is bent?
12.
13. - are usually hard , because their
molecules have been packed together
- When bent, these materials may
change their size and shape.
14. - Only physical appearance of
materials changed.There is no new
material formed.
- to shape or force into a
curve or angle.
15. Post Activity
Directions: Draw the
following shapes stated
below to describe the
changes that took place in
each material.
16. Post Activity
if there is a change in shape
if there is a change in size
if there is no change
if there is a change in both the size
and shape
17. Post Activity
1. bent rubber slippers
2. bent tie wire
3. bent staple wire
4. bent paper clip
5. bent paper clip
18. “Identify My
Characteristics”
Directions: Color the box red if there is a
change in shape, yellow if there is a
change in size, blue if there is no
change and black if there is a change in
both the size and shape.
19.
20.
21.
22. Application
Directions: Using the puzzle, find 5
objects written inside the box below
that undergo changes in their original
appearance. Words can be looped
horizontally and vertically. Write your
answers in your Science notebook.
24. Application
M E T A L S P O O N
E D E F G H A J K B
P I L L O W P K R R
A Q P I L L E W G E
L E L A M E R A B A
W K L A H C D A L D
25. Application
Direction: Group the students into four (4).
From the materials provided, each of the
group will explore how the materials change
when they are bent. Remind them to be
careful in handling the materials while
performing the activity. Ask them to make
creative artwork using the materials provided.
27. Application
Assessment Questions:
1. What happens to the material when
bent?
2. Describe what changes happened
to the properties of the paper clips /
tie wire when it was bent.
30. Solid materials can be bent. When bent,
these materials may change their size
and shape. No new material is formed.
- only the physical appearance of the
materials is changed.
31. The changes that this materials
underwent is called
- Bending a steel bar/iron in industry is an
example of bending of solid materials.
- the degree of bending can vary
depending on the material and the force
applied.
32. Assessment
Directions: Put a check mark (√) on the
proper column that best describes the
characteristics of each material when
bent. Write your answer in your
Science notebook.
33. Assessment
Materials Change in
Was new
material formed ?
Size Shape Yes No
1.plastic ruler
2.staple wire
3.metal spoon
4.rubber slippers
5.paper clips
35. Directions: Find examples of
everyday objects that undergo
changes when bent. Take pictures
or draw a sketches of these
objects and write a short
description of the changes
