This document discusses the differences between physical and chemical changes. It defines physical changes as changes in a material's properties like shape, size, or state without changing its chemical makeup. Chemical changes form new substances through molecular rearrangements. The document provides examples of physical changes like cutting paper or breaking eggs and chemical changes like burning wood or dissolving sugar in tea. Learners are asked to determine if examples show physical or chemical changes and write a paragraph explaining the differences with their own examples.

1. Physical and Chemical
Changes
A Write On Activity

2. Objective: Chemical/Physical
Change: Differentiate
 The learner will be able to
(ESSENTIAL) distinguish
between a physical and
chemical change.

3. In your notebook:
Write notes on the following
powerpoint. You will need to know
what a physical and chemical
change is and what you look for
when determining if something is a
physical or chemical change.

4. Matter
 Matter is everywhere.
 Matter is anything that takes up
space and has mass.
 Matter is constantly experiencing
both chemical and physical
changes.

5. Physical Change
 Physical changes occur when
matter changes its property but not
its chemical nature.
 Physical property changes could
include a change in: texture, shape,
size, color, change of state, volume,
mass, weight, and density.

6. Physical Change

7. Chemical Change
 Chemical changes are changes
matter undergoes when it becomes
new or different matter. A new
substance is formed.
 To identify a chemical change look
for signs such as color change, odor,
bubbling and fizzing, light production,
smoke, and presence of heat.

8. Chemical Change
 A chemical change
occurs when fireworks
are used. Fireworks
are made of metals
such as magnesium
and copper. These
change chemically as
they light up the sky.

9. Is it a chemical or physical change?
 Sugar dissolving
in tea
•Chemical Change
•Physical Change

10. OOPS!
Did it change size, color, shape (Physical
Change)?
or
Did it become different matter (Chemical
Change)?

11. Correct!

12. Is it a chemical or physical change?
 Logs burning
•Chemical Change
•Physical Change

13. OOPS!
Did it change size, color, shape (Physical
Change)?
or
Did it become different matter (Chemical
Change)?

14. Correct!

15. Is it a chemical or physical change?
 Breaking water up by
separating it into hydrogen
and oxygen
•Chemical Change
•Physical Change

16. OOPS!
Did it change size, color, shape (Physical
Change)?
or
Did it become different matter (Chemical
Change)?

17. Correct!

18. Is it a chemical or physical change?
 Cutting paper
•Chemical Change
•Physical Change

19. OOPS!
Did it change size, color, shape (Physical
Change)?
or
Did it become different matter (Chemical
Change)?

20. Correct!

21. Is it a chemical or physical change?
 Crushing an
aspirin
•Chemical Change
•Physical Change

22. OOPS!
Did it change size, color, shape (Physical
Change)?
or
Did it become different matter (Chemical
Change)?

23. Correct!

24. Is it a chemical or physical change?
 Metal rusting
•Chemical Change
•Physical Change

25. OOPS!
Did it change size, color, shape (Physical
Change)?
or
Did it become different matter (Chemical
Change)?

26. Correct!

27. Is it a chemical or physical change?
 Lighter fluid
burining
•Chemical Change
•Physical Change

28. OOPS!
Did it change size, color, shape (Physical
Change)?
or
Did it become different matter (Chemical
Change)?

29. Correct!

30. Is it a chemical or physical change?
 An egg rotting
•Chemical Change
•Physical Change

31. OOPS!
Did it change size, color, shape (Physical
Change)?
or
Did it become different matter (Chemical
Change)?

32. Correct!

33. Is it a chemical or physical change?
 An egg breaking
•Chemical Change
•Physical Change

34. OOPS!
Did it change size, color, shape (Physical
Change)?
or
Did it become different matter (Chemical
Change)?

35. Correct!

36. Writing Activity
 Write a detailed paragraph (at
least 6 sentences) about the
difference between a chemical
and physical change. Give
examples of each.