Science Grade 4: Physical Change in Materials

1. SCIENCE
4

2. START UP

3. CHANGE THE PAPER

4. What state of matter is
the paper?

5. What changes
have you
observed when
you cut, fold,
press the paper?

6. Did the paper change
into a new substance
or material?

7. Physical Change in
Solid Materials

8. What is a
Physical
Change?

9. Physical Change in
Solids
Physical Change is the change in
physical characteristics of solids
such as size and shape without
forming a new substance.

14. What is a
Physical
Change?

15. Chemica
l
Change
NEW
MATERIAL/
SUBSTANC
E IS
FORMED.

16. How do we
change the size
and shape of
solids?

22. Ways to Change the
Size and Shape of
Solids
-Cutting
- Folding
- Bending
- Pressing
-Hammering

23. Thumbs Up,
Thumbs Down

28. Sum it
Up!

29. •What is a Physical
Change?
•What are the ways to
change the size and
shape of solid materials?

30. Copy on your notes!
A.Date: October 5, 2022
B.Essential Question
a. What is a Physical Change?
b. What are the ways to change the
size and shape of solid materials?

31. Copy on your notes!
C. Concept
1. Physical Change is the change in physical
characteristics of solids such as size and shape
without forming a new substance.
2.The size and shape of materials can be changed
by cutting, folding, pressing and bending
3.Examples of Physical Change in Solid Materials
are:
1.Cutting Paper
2.Bending Paper clips
3.Crushing used cans
4.Slicing apples
D. What have I learned?

32. Assignment!
Observing and Describing Changes in
Materials
1. Look for solid materials around you
house.
2. Describe the ways to change their
Size and Shape

33. Physical Change in
Metals

36. How do we change
the size and shape of
metals?

37. Some solids like
metals can undergo
physical change by
cutting, hammering,
pressing or bending
without breaking.

38. Metals, unlike
other solids
can be heated
without
forming into a
new
substance.

39. This property of
metal is called
Ductility and
Malleability.

40. Ductility
- ability of
metals to be
drawn in fine
wires without
breaking.

41. Malleability
- ability of
metals to
be formed
into flat,
thin sheets.